Infertility

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infertility causes diagram male female

This pathophysiology diagram illustrates the proposed mechanisms of male infertility induced by Radio Frequency Electromagnetic Field (RFR-EMF) exposure. The process begins with RFR-EMF radiation affecting the testis, which triggers two primary pathological pathways: Genotoxicity (represented by cellular nuclear damage) and Reactive Oxygen Species (ROS)/Oxidative Stress (represented by a star-shaped icon). These two intermediate states converge to cause a spectrum of genetic and cellular alterations, specifically: DNA damage (helix fragmentation), Strand Breaks, Chromosomal Aberrations, Sister Chromatid Exchange (SCE) Translocation, the formation of Micronuclei, and cellular Apoptosis. The flow concludes with a final box indicating that the cumulative effect of these genotoxic and oxidative stressors leads to 'Male Infertility.' This diagram serves as an educational summary of how non-ionizing radiation potentially disrupts male reproductive health through genomic instability and oxidative damage.

This pathophysiology diagram illustrates the proposed mechanisms of male infertility induced by Radio Frequency Electromagnetic Field (RFR-EMF) exposure. The process begins with RFR-EMF radiation affecting the testis, which triggers two primary pathological pathways: Genotoxicity (represented by cellular nuclear damage) and Reactive Oxygen Species (ROS)/Oxidative Stress (represented by a star-shaped icon). These two intermediate states converge to cause a spectrum of genetic and cellular alterations, specifically: DNA damage (helix fragmentation), Strand Breaks, Chromosomal Aberrations, Sister Chromatid Exchange (SCE) Translocation, the formation of Micronuclei, and cellular Apoptosis. The flow concludes with a final box indicating that the cumulative effect of these genotoxic and oxidative stressors leads to 'Male Infertility.' This diagram serves as an educational summary of how non-ionizing radiation potentially disrupts male reproductive health through genomic instability and oxidative damage.

Summary : This figure presents the recommended initial clinical assessment steps for infertility in females and males, listing specific diagnostic procedures for each sex.

flowchart:
# Female Assessment :
  • Medical history
  • Physical examination
  • Pelvic 2D ultrasound for detection of structural abnormalities, with additional imaging if needed
  • Assessment of ovulatory function via menstrual calendar and laboratory testing
  • AMH (Anti-Müllerian Hormone) or other ovarian reserve testing

# Male Assessment :
  • Medical history
  • Physical examination
  • Semen analysis

# Symbols :
  • Female symbol (♀) for female assessment section
  • Male symbol (♂) for male assessment section

Analysis :
  • The figure clearly separates the infertility assessment protocols for females and males, with more detailed and varied diagnostic steps for females, including imaging and hormonal testing, while the male assessment focuses on semen analysis after history and examination. This highlights the complexity and multi-factorial nature of female infertility evaluation compared to male.

Summary : This figure presents the recommended initial clinical assessment steps for infertility in females and males, listing specific diagnostic procedures for each sex. flowchart: # Female Assessment : • Medical history • Physical examination • Pelvic 2D ultrasound for detection of structural abnormalities, with additional imaging if needed • Assessment of ovulatory function via menstrual calendar and laboratory testing • AMH (Anti-Müllerian Hormone) or other ovarian reserve testing # Male Assessment : • Medical history • Physical examination • Semen analysis # Symbols : • Female symbol (♀) for female assessment section • Male symbol (♂) for male assessment section Analysis : • The figure clearly separates the infertility assessment protocols for females and males, with more detailed and varied diagnostic steps for females, including imaging and hormonal testing, while the male assessment focuses on semen analysis after history and examination. This highlights the complexity and multi-factorial nature of female infertility evaluation compared to male.

This medical flow diagram illustrates the clinical workflow of In Vitro Fertilization and Embryo Transfer (IVF-ET) in a case of male mosaicism. The process begins with a genetic evaluation of the male patient, showing a 45,X/46,XY karyotype in peripheral blood and a more complex 45,X/47,XYY/46,XY mosaicism in testicular tissue. The procedural steps follow: percutaneous testicular puncture for sperm retrieval, separation of motile sperm, and egg collection from the female reproductive system. These are combined to obtain six embryos, from which one '8C/II' embryo is selected for transfer. The final stages show the progression to pregnancy, including prenatal screening via amniocentesis in the second trimester, revealing a 46,XN karyotype in the amniotic fluid. This infographic serves as an educational tool for reproductive endocrinology and infertility (REI), demonstrating the management of gonadal dysgenesis and chromosomal mosaicism through assisted reproductive technology (ART) to achieve a successful pregnancy outcome.

This medical flow diagram illustrates the clinical workflow of In Vitro Fertilization and Embryo Transfer (IVF-ET) in a case of male mosaicism. The process begins with a genetic evaluation of the male patient, showing a 45,X/46,XY karyotype in peripheral blood and a more complex 45,X/47,XYY/46,XY mosaicism in testicular tissue. The procedural steps follow: percutaneous testicular puncture for sperm retrieval, separation of motile sperm, and egg collection from the female reproductive system. These are combined to obtain six embryos, from which one '8C/II' embryo is selected for transfer. The final stages show the progression to pregnancy, including prenatal screening via amniocentesis in the second trimester, revealing a 46,XN karyotype in the amniotic fluid. This infographic serves as an educational tool for reproductive endocrinology and infertility (REI), demonstrating the management of gonadal dysgenesis and chromosomal mosaicism through assisted reproductive technology (ART) to achieve a successful pregnancy outcome.

A pathophysiology diagram illustrating the direct and indirect mechanisms by which bacteria cause sperm functional defects and male infertility. The diagram outlines two primary pathways: 1) Direct Interaction: Adherence of bacteria to the sperm surface. 2) Indirect Inflammatory Response: Bacterial presence triggers immune cell activation, specifically involving neutrophils, macrophages, lymphocytes, and monocytes. These leukocytes release reactive oxygen species (ROS) and pro-inflammatory cytokines, including TNF-α, IL-6, and IL-8. Both pathways converge to induce cellular oxidative stress. The final section of the flowchart lists the resulting sperm functional defects, which include lipid peroxidation, DNA fragmentation, mitochondrial dysfunction, loss of motility, and the induction of apoptosis. This educational visual provides a comprehensive overview of how bacterial infections and the subsequent leukocytospermic response impair reproductive health at the cellular level.

A pathophysiology diagram illustrating the direct and indirect mechanisms by which bacteria cause sperm functional defects and male infertility. The diagram outlines two primary pathways: 1) Direct Interaction: Adherence of bacteria to the sperm surface. 2) Indirect Inflammatory Response: Bacterial presence triggers immune cell activation, specifically involving neutrophils, macrophages, lymphocytes, and monocytes. These leukocytes release reactive oxygen species (ROS) and pro-inflammatory cytokines, including TNF-α, IL-6, and IL-8. Both pathways converge to induce cellular oxidative stress. The final section of the flowchart lists the resulting sperm functional defects, which include lipid peroxidation, DNA fragmentation, mitochondrial dysfunction, loss of motility, and the induction of apoptosis. This educational visual provides a comprehensive overview of how bacterial infections and the subsequent leukocytospermic response impair reproductive health at the cellular level.

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Infertility

Definition

Infertility is defined by the WHO as "a disease of the reproductive system, defined by the failure to achieve a clinical pregnancy after 12 months or more of regular unprotected sexual intercourse." It is the third most common disease worldwide, affecting approximately 48-72 million couples, with a global prevalence of ~17.5%.
  • Primary infertility - couples who have never achieved a pregnancy
  • Secondary infertility - infertility after at least one prior pregnancy
  • Approximately 85% of couples achieve pregnancy after 12 months; 95% after 24 months
  • Harrison's Principles of Internal Medicine, 22nd ed. (2025)

Fecundability & Age Effects

The fecundability rate (probability of pregnancy per menstrual cycle) is highest in the first 3 months of trying and declines thereafter. Age-related decline is particularly significant in females:
Female AgeReduction in Fecundability
34-35 years-14% vs. age 30-31
36-37 years-19%
40-41 years-53%
42-44 years-59%
A similar decline has not been consistently observed in men under 50 years.

When to Start Evaluation

SituationWhen to Evaluate
Female age <35After 12 months of unprotected intercourse
Female age 35-40After 6 months
Female age >40Immediately
Known risk factors presentBefore 12-month threshold

Etiology & Causes

Infertility causes are broadly divided into female factors, male factors, and unexplained. In ~20-30% of couples, both male and female factors co-exist.
Initial infertility assessment for females and males

Male Factors (~40-50% of cases)

1. Decreased sperm production
  • Varicocele (most common correctable cause)
  • Testicular failure / cryptorchidism
  • Endocrine disorders (hypogonadotropic hypogonadism, hypothyroidism, hyperprolactinemia)
  • Genetic: Klinefelter syndrome (47,XXY), Y chromosome microdeletions
  • Lifestyle: smoking, caffeine, recreational drugs, morbid obesity
2. Ductal obstruction
  • Epididymal obstruction (post-infection)
  • Congenital absence of the vas deferens (associated with CFTR mutations)
  • Ejaculatory duct obstruction
  • Post-vasectomy
3. Inability to deliver sperm
  • Hypospadias
  • Erectile/ejaculatory dysfunction
  • Sexual dysfunction (psychological or medical)
4. Abnormal semen
  • Infection, abnormal volume/viscosity
  • Sperm-immobilizing or agglutinating antibodies (immunologic factor)

Female Factors (~30-40% of cases)

1. Tubal factors (20-30%)
  • Pelvic inflammatory disease (most common cause of tubal damage)
  • Endometriosis
  • Prior surgery / peritonitis
  • Salpingitis isthmica nodosa
2. Ovulatory dysfunction (15-20%)
  • Polycystic ovary syndrome (PCOS) - most common single cause
  • Diminished ovarian reserve
  • Premature ovarian insufficiency
  • Hypothalamic amenorrhea (excessive exercise, low BMI)
3. Endocrine dysfunction
  • Hypothyroidism
  • Hyperprolactinemia
  • Diabetes mellitus
4. Uterine & cervical factors (10%)
  • Leiomyomas and polyps
  • Congenital malformations (e.g., septate uterus)
  • Intrauterine synechiae (Asherman syndrome)
  • Destroyed endocervical glands
5. Vaginal factors (<5%)
  • Congenital absence, imperforate hymen, vaginismus
6. Immunologic (<5%)
  • Sperm-immobilizing/agglutinating antibodies

Unexplained Infertility (~10-30%)

No identifiable abnormality despite complete workup. May reflect undetected oocyte/embryo quality issues or subtle sperm defects.
  • Goldman-Cecil Medicine, Table 218-6; Harrison's 22E

Fertility Evaluation

Initial Assessment - Both Partners

The evaluation includes detailed medical and sexual history, physical examination, and directed laboratory/imaging testing. Couples should be interviewed together and separately.
Female evaluation:
  • Menstrual calendar and basal body temperature charts
  • Serum progesterone (6-8 days before expected menses) - documents ovulation
  • Serum TSH (rule out thyroid disorder)
  • Serum prolactin
  • Anti-Müllerian hormone (AMH) - ovarian reserve
  • FSH, LH, estradiol (Day 3 of cycle)
  • Hysterosalpingography (HSG) or sonohysterography - tubal and uterine anatomy
  • Pelvic ultrasound - antral follicle count, structural pathology
Male evaluation:
  • Semen analysis (the single most important test) - volume, concentration, motility, morphology
  • If abnormal: repeat semen analysis, hormone panel (FSH, LH, testosterone, prolactin), genetics (karyotype, Y microdeletion testing)
Advanced/selective tests:
  • Diagnostic laparoscopy with tubal dye (if all prior tests normal; 30-50% of women have endometriosis or tubal disease found only this way)
  • Endometrial biopsy (rarely required now)

Semen Analysis - Normal Reference Values (WHO)

ParameterLower Reference Limit
Volume≥1.5 mL
Total sperm count≥39 million
Concentration≥16 million/mL
Progressive motility≥30%
Total motility≥42%
Morphology (Kruger strict)≥4% normal forms

Treatment

Treatment is directed by the identified cause(s). A complete workup of both partners should be completed before initiating treatment.

Ovulation Induction (Anovulatory Women)

Endocrine conditions (hypothyroidism, hyperprolactinemia) must be treated first.
AgentMechanismNotes
Letrozole (aromatase inhibitor)Blocks estrogen synthesis → stimulates FSHFirst-line for PCOS (per current evidence)
Clomiphene citrate (SERM)Anti-estrogen effect → increases FSH/LH50 mg days 3-7; max 200-250 mg; first-line if prolactin normal
MetforminInsulin sensitizerAdd-on in obese PCOS patients
Injectable gonadotropins (FSH, LH)Direct follicular stimulationSecond/third-line; risk of ovarian hyperstimulation (OHSS)
60-80% of women with PCOS respond to oral agents. In hypothalamic amenorrhea, weight gain and exercise reduction may restore ovulation.

Tubal Factor

  • Tubal surgery has limited success and increases ectopic pregnancy risk
  • IVF is preferred when tubes are damaged
  • Hydrosalpinges: salpingectomy before IVF improves success rates
  • Proximal blockage: radiographic tubal cannulation can be attempted
  • Prior tubal ligation: IVF vs. microsurgical reanastomosis based on age, ovarian reserve, and preferences

Male Factor Infertility

  • Mild to moderate: Intrauterine insemination (IUI) ± ovulation induction
  • Severe (oligospermia/poor motility): IVF with ICSI (intracytoplasmic sperm injection) - single sperm injected into oocyte
  • Azoospermia: Determine obstructive vs. non-obstructive; surgical sperm retrieval (TESA/TESE) + ICSI
  • Hypogonadotropic hypogonadism: pulsatile GnRH or gonadotropin injections
  • Varicocele repair may improve sperm parameters and natural conception rates

Endometriosis-Related Infertility

  • Surgery (laparoscopic excision) or suppressive medications
  • IVF often indicated, especially in severe disease

Unexplained Infertility

  • Stepwise escalation: lifestyle optimization → IUI ± ovulation induction → IVF
  • Empiric treatment with letrozole + IUI is commonly tried first

Assisted Reproductive Technology (ART)

ProcedureDescription
IUI (Intrauterine insemination)Washed sperm deposited into uterus via catheter; office-based
IVF (In vitro fertilization)Oocytes retrieved transvaginally under sedation; fertilized in lab; embryos transferred at Day 3 (cleavage) or Day 5 (blastocyst)
ICSISingle sperm injected into oocyte; for severe male factor
Donor oocytesUsed in premature ovarian insufficiency or diminished ovarian reserve
Embryo cryopreservationFreeze excess embryos for future transfer
IVF success rates decrease significantly with female age. For example, live birth rates per cycle are ~40-50% in women <35 years and fall to ~5-10% in women >42 years.

Special Populations & Counseling

  • Cancer patients: Fertility preservation (oocyte/embryo/sperm cryopreservation) should be offered before gonadotoxic therapy
  • LGBTQ+ couples: Third-party reproduction (donor sperm, donor eggs, gestational carriers)
  • Psychological impact: Infertility causes significant psychological distress; counseling and support are integral to management
  • Lifestyle: Smoking cessation, weight optimization, reduction of alcohol/recreational drugs improve outcomes for both partners
  • Berek & Novak's Gynecology; Harrison's Principles of Internal Medicine, 22E (2025); Goldman-Cecil Medicine

Recent Evidence (2024-2026)

  • A 2025 systematic review (PMID 41113721) on endometriosis-associated infertility highlights multi-omics insights into pathogenesis and new precision therapeutic targets.
  • A 2025 meta-analysis (PMID 39332623) on diminished ovarian reserve found limited evidence supporting most current interventions; IVF with donor oocytes remains the most effective option for this group.

Sources: Goldman-Cecil Medicine, p. 2561 | Harrison's Principles of Internal Medicine 22E (2025) | Berek & Novak's Gynecology | Smith and Tanagho's General Urology, 19th ed.

Prolapse of uterus

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uterine prolapse degrees grading diagram anatomy

A side-by-side clinical photograph documenting uterine prolapse and its subsequent management with a pessary in a pregnant patient. The left panel shows a clinical examination of the vulva with a gloved hand retracting the labia. The cervix is visibly descended and protruding through the vaginal introitus, characteristic of grade 2 pelvic organ prolapse. The cervical tissue appears hyperemic and edematous. The right panel displays the external female genitalia following the placement of an Arabin cerclage pessary. In this view, the prolapse is reduced, and a portion of the blue silicone pessary is visible within the vaginal canal, positioned to support the cervix and maintain its placement. The image illustrates a non-surgical management strategy for symptomatic uterine prolapse and acute urinary retention during pregnancy. Educational concepts include pelvic floor anatomy, grading of organ prolapse, and mechanical support devices in obstetrics and gynecology.

A side-by-side clinical photograph documenting uterine prolapse and its subsequent management with a pessary in a pregnant patient. The left panel shows a clinical examination of the vulva with a gloved hand retracting the labia. The cervix is visibly descended and protruding through the vaginal introitus, characteristic of grade 2 pelvic organ prolapse. The cervical tissue appears hyperemic and edematous. The right panel displays the external female genitalia following the placement of an Arabin cerclage pessary. In this view, the prolapse is reduced, and a portion of the blue silicone pessary is visible within the vaginal canal, positioned to support the cervix and maintain its placement. The image illustrates a non-surgical management strategy for symptomatic uterine prolapse and acute urinary retention during pregnancy. Educational concepts include pelvic floor anatomy, grading of organ prolapse, and mechanical support devices in obstetrics and gynecology.

Anatomical Diagram: A black-and-white schematic illustration demonstrating the surgical fixation of the round ligaments to the anterior rectus fascia, likely for the management of pelvic organ prolapse. The diagram provides an anterior view of the uterus and its supporting structures. The uterine fundus is shown in the center, with the round ligaments extending bilaterally. These ligaments are depicted being pulled cranially and looped through small fenestrations in the rectus abdominis muscle layer. The apical 'ans' or loop of each round ligament is secured to the overlying fascia using three distinct sutures, represented by 'x' markers. Additional adnexal structures, including the fallopian tubes and utero-ovarian ligaments, are visible extending from the uterine cornua. The illustration emphasizes the anatomical relationship between the pelvic viscera and the abdominal wall fascia during a suspension procedure, highlighting the point of mechanical support and the method of non-absorbable suture fixation used to stabilize the uterine position.

Anatomical Diagram: A black-and-white schematic illustration demonstrating the surgical fixation of the round ligaments to the anterior rectus fascia, likely for the management of pelvic organ prolapse. The diagram provides an anterior view of the uterus and its supporting structures. The uterine fundus is shown in the center, with the round ligaments extending bilaterally. These ligaments are depicted being pulled cranially and looped through small fenestrations in the rectus abdominis muscle layer. The apical 'ans' or loop of each round ligament is secured to the overlying fascia using three distinct sutures, represented by 'x' markers. Additional adnexal structures, including the fallopian tubes and utero-ovarian ligaments, are visible extending from the uterine cornua. The illustration emphasizes the anatomical relationship between the pelvic viscera and the abdominal wall fascia during a suspension procedure, highlighting the point of mechanical support and the method of non-absorbable suture fixation used to stabilize the uterine position.

This composite image illustrates the reduction of prolapsed fetal membranes during an emergency cervical cerclage procedure, featuring a side-by-side clinical photograph and schematic diagram. The right panel is a clinical photograph showing the vaginal surgical field draped in blue sterile sheets. A surgeon's gloved hands are seen utilizing a metallic vaginal retractor and surgical forceps to expose the cervix. A yellow Foley catheter is inserted through the cervical canal, utilized here to manually reduce the bulging amniotic sac (membranes) back into the uterine cavity. The left panel provides a corresponding schematic illustration of the female pelvic anatomy, specifically detailing the cervix, uterus, and the placement of surgical instruments. The diagram highlights the mechanical process of using a catheter balloon and purse-string sutures to stabilize the prolapse and secure the cervical os. This educational material is designed for obstetrics and gynecology training, specifically focused on surgical management of cervical insufficiency and fetal membrane prolapse.

This composite image illustrates the reduction of prolapsed fetal membranes during an emergency cervical cerclage procedure, featuring a side-by-side clinical photograph and schematic diagram. The right panel is a clinical photograph showing the vaginal surgical field draped in blue sterile sheets. A surgeon's gloved hands are seen utilizing a metallic vaginal retractor and surgical forceps to expose the cervix. A yellow Foley catheter is inserted through the cervical canal, utilized here to manually reduce the bulging amniotic sac (membranes) back into the uterine cavity. The left panel provides a corresponding schematic illustration of the female pelvic anatomy, specifically detailing the cervix, uterus, and the placement of surgical instruments. The diagram highlights the mechanical process of using a catheter balloon and purse-string sutures to stabilize the prolapse and secure the cervical os. This educational material is designed for obstetrics and gynecology training, specifically focused on surgical management of cervical insufficiency and fetal membrane prolapse.

A clinical photograph showing a stage IV total uterine prolapse in a patient positioned for gynecological examination. The visual demonstrates a significant protrusion of the uterus and everted vaginal walls through the vaginal introitus, presenting as a large, rounded, fleshy mass. The prolapsed tissue exhibits a pale pink to reddish color with a glistening, moist surface and visible horizontal rugae or mucosal folds. At the most distal end of the mass, the external os of the cervix is clearly visible as a dark, oval orifice. The surrounding anatomy includes the labia minora and the vulvar region. The skin of the inner thighs and perineum is visible, showing some minor scattered erythematous macules or blemishes, but notably lacks extensive ulceration or necrosis of the vaginal mucosa. This image illustrates a severe case of pelvic organ prolapse (POP) which, as noted in the clinical context, can lead to secondary complications such as bilateral hydronephrosis due to ureteral compression.

A clinical photograph showing a stage IV total uterine prolapse in a patient positioned for gynecological examination. The visual demonstrates a significant protrusion of the uterus and everted vaginal walls through the vaginal introitus, presenting as a large, rounded, fleshy mass. The prolapsed tissue exhibits a pale pink to reddish color with a glistening, moist surface and visible horizontal rugae or mucosal folds. At the most distal end of the mass, the external os of the cervix is clearly visible as a dark, oval orifice. The surrounding anatomy includes the labia minora and the vulvar region. The skin of the inner thighs and perineum is visible, showing some minor scattered erythematous macules or blemishes, but notably lacks extensive ulceration or necrosis of the vaginal mucosa. This image illustrates a severe case of pelvic organ prolapse (POP) which, as noted in the clinical context, can lead to secondary complications such as bilateral hydronephrosis due to ureteral compression.

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Prolapse of the Uterus (Pelvic Organ Prolapse)

Definition

Pelvic organ prolapse (POP) is the descent of one or more of the pelvic organs (uterus, vaginal walls, bladder, rectum) through the vaginal canal due to failure of the pelvic floor support structures. Uterine prolapse specifically refers to descent of the uterus and cervix through the vaginal hiatus.
It is an increasingly common condition, especially with an aging population. Loss of some degree of uterovaginal support is present in the majority of adult women - in one multicenter study only 24% of women seeking routine gynaecologic care had no prolapse at all.
  • Campbell-Walsh Urology; Berek & Novak's Gynecology

Anatomy of Pelvic Support (Three Levels - DeLancey)

Understanding prolapse requires knowledge of the three levels of pelvic support:
LevelStructuresSupport Provided
Level I (Apical)Uterosacral & cardinal ligamentsSuspend the uterus/vaginal apex from the sacrum and pelvic sidewall
Level II (Mid-vaginal)Pubocervical fascia (anterior), Rectovaginal fascia (posterior)Support the mid-vagina (prevents cystocele/rectocele)
Level III (Distal)Perineal body, external anal sphincter, perineal membraneSupport the distal vagina and urogenital hiatus
The levator ani muscle complex is the key dynamic support structure. It maintains a closed urogenital hiatus at rest. When levator tone is lost (trauma or denervation), the entire load falls on the endopelvic fascia ligaments, which then fatigue and fail over time.

Epidemiology

  • Up to 43-90% of women have some degree of prolapse on examination
  • Symptomatic POP (vaginal bulge sensation): 3-12% prevalence
  • Most common site: anterior compartment (cystocele - 34%), followed by posterior (19%), then uterine/apical (14%)
  • Apical prolapse is almost always present when there is significant anterior or posterior wall prolapse
  • Lifetime risk of undergoing surgery for POP is ~11%
  • Campbell-Walsh Urology

Pathophysiology & Risk Factors

Prolapse is multifactorial. The key pathological mechanisms are:

1. Muscle Injury (Levator Ani Trauma)

  • Vaginal delivery causes visible levator ani defects in up to 20% of primiparous women (seen on MRI)
  • Denervation from pudendal nerve injury (S3-S5) during labour - found in 24-29% of primiparous women at 6 weeks and 6 months post-delivery
  • Even cesarean after labour (not elective C-section) causes some levator injury

2. Connective Tissue / Fascial Failure

  • Collagen metabolism is altered in women with prolapse - abnormal type I:III collagen ratio
  • Connective tissue disorders (Ehlers-Danlos, Marfan syndrome) significantly increase POP risk
  • Age-related loss of collagen and elastin reduces fascial integrity

3. Hormonal Changes

  • Oestrogen deficiency after menopause accelerates collagen degradation and reduces tissue quality

Key Risk Factors

Risk FactorNotes
Vaginal deliveryMost important modifiable risk; number and difficulty of deliveries matters
Increased parityCumulative trauma
Ageing / menopauseOestrogen loss, tissue atrophy
ObesityChronic raised intra-abdominal pressure
Chronic strainingConstipation, chronic cough
Prior pelvic surgeryHysterectomy significantly increases vault prolapse risk
Connective tissue disordersMarfan, Ehlers-Danlos
RaceWhite and Hispanic women at higher risk than Black women for anterior wall prolapse
Family historyGenetic predisposition

Types of Prolapse

TypeStructure DescendingAlternative Name
Uterine prolapseUterus + cervixDescensus uteri
CystoceleBladder through anterior vaginal wallAnterior wall prolapse
RectoceleRectum through posterior vaginal wallPosterior wall prolapse
EnteroceleSmall bowel/peritoneal sac through pelvic floorUsually post-hysterectomy
Vaginal vault prolapseVaginal apex post-hysterectomyApical prolapse
UrethroceleUrethraAnterior wall variant
Stage IV complete uterine prolapse - complete protrusion of uterus through the introitus with visible cervical os
Stage IV complete uterine prolapse

Staging / Grading Systems

Baden-Walker Halfway System (Traditional)

GradeDescription
0Normal, no prolapse
1Descent halfway to the hymen
2Descent to the hymen
3Descent halfway past the hymen
4Maximum possible descent

POP-Q System (ICS Gold Standard)

The Pelvic Organ Prolapse Quantification (POP-Q) system is the International Continence Society standard. It measures 9 anatomical points relative to the hymen (positive = distal to hymen, negative = proximal):
  • Aa, Ba - Anterior wall points
  • C, D - Cervix/fornix (middle compartment)
  • Ap, Bp - Posterior wall points
  • gh (genital hiatus), pb (perineal body), tvl (total vaginal length)
All measurements taken at maximal Valsalva straining.
POP-Q StageDefinition
0No prolapse - all points ≤-3 cm
ILeading edge >1 cm above hymen (< -1 cm)
IILeading edge within 1 cm of hymen (-1 to +1 cm)
IIILeading edge >1 cm below hymen but not completely everted
IVComplete eversion / procidentia
  • Berek & Novak's Gynecology

Clinical Features / Symptoms

Most specific symptom: Sensation of a vaginal bulge (seeing or feeling a lump at the vaginal opening). Symptoms are generally absent until prolapse reaches the hymenal ring.

Pelvic / Vaginal Symptoms

  • Pelvic pressure, heaviness, or dragging sensation
  • Visible or palpable bulge at the vaginal introitus
  • Vaginal discharge or bleeding (from mucosal ulceration in procidentia)
  • Low backache (worsens during the day, relieves on lying down)

Urinary Symptoms

  • Urinary frequency and urgency
  • Incomplete bladder emptying, slow or interrupted stream
  • Stress urinary incontinence (SUI) - paradox: as prolapse advances beyond the hymen, SUI may decrease due to urethral kinking, but obstructive voiding increases
  • Recurrent UTIs

Bowel Symptoms (weak correlation with prolapse severity)

  • Constipation, straining
  • Sensation of incomplete emptying
  • Need to digitally splint the posterior vaginal wall to complete defecation (classic for rectocele)
  • Fecal incontinence

Sexual Dysfunction

  • Dyspareunia, reduced sensation
  • Negative body image and psychosexual distress

Complications of Untreated Severe Prolapse

  • Ulceration and keratinization of exposed cervix/vaginal mucosa
  • Urinary retention
  • Bilateral hydronephrosis and renal failure (ureteral compression in procidentia)
  • Incarceration of small bowel in enterocele
Important: Low backache and pelvic pain attributed to prolapse warrant investigation of other sources. A pessary trial can help distinguish prolapse-related symptoms from other pathology - improvement with pessary suggests POP is the causative factor.
  • Campbell-Walsh Urology

Investigations

History & Physical Examination

  • Examine in dorsal lithotomy position and standing
  • Valsalva manoeuvre and coughing to demonstrate maximum prolapse
  • Assess all three compartments separately using Sims speculum
  • Assess levator ani tone and voluntary contraction

Urological Evaluation

  • Urinalysis and urine culture
  • Urodynamic studies (if urinary symptoms are prominent)
  • Post-void residual urine

Imaging

  • Pelvic ultrasound (first-line)
  • MRI defecography - for complex multi-compartment prolapse and surgical planning
  • Intravenous pyelogram / renal ultrasound - to rule out hydronephrosis in advanced cases

Additional Tests

  • Cervical smear (Pap test) before surgery
  • Endometrial assessment if abnormal bleeding

Treatment

Treatment is based on symptoms, severity, the patient's wishes, age, sexual activity, and fitness for surgery. Asymptomatic prolapse at Stages I-II requires no treatment.

1. Conservative / Non-Surgical Management

Pelvic floor muscle training (PFMT)
  • First-line for mild-moderate symptomatic prolapse
  • Individualized physiotherapy can reduce prolapse severity and symptoms
  • Most effective when started early and done consistently
Lifestyle Modifications
  • Weight reduction in obese patients
  • Treat chronic constipation (high-fibre diet, laxatives)
  • Avoid heavy lifting and prolonged standing
  • Smoking cessation (reduces chronic cough)
Oestrogen therapy (local vaginal)
  • Improves tissue quality, reduces atrophy
  • Useful adjunct to pessary or pre-operatively
Pessary (Mechanical Support)
  • Indicated for patients who are not surgical candidates, wish to avoid surgery, or want symptom relief during pregnancy
  • Ring pessary - most widely used; suitable for mild-moderate prolapse; fits behind pubic symphysis anteriorly and posterior vaginal fornix
  • Shelf/Gehrung pessary - for larger or more complex prolapse
  • Cube/donut pessary - for advanced prolapse in women who do not want surgery
  • Success: 50-73% of women are successfully fitted initially
  • Requires regular removal and cleaning (every 3-6 months); risk of erosion if neglected (even hydronephrosis and fistulae reported)
  • Contraindicated in: active pelvic infection, poor vaginal tissue, inability to manage pessary

2. Surgical Management

Surgical intervention is offered to symptomatic women who have failed or declined conservative treatment and are fit for surgery.

A. Uterine Conservation (Hysteropexy)

For women who wish to retain their uterus (or are suitable candidates):
ProcedureApproachNotes
Manchester (Fothergill) operationVaginalAmputation of cervix + shortening of cardinal ligaments + anterior repair; good results for cervical elongation with prolapse
Sacrospinous hysteropexyVaginalSuspension of cervix/uterus to sacrospinous ligament
Abdominal/laparoscopic hysteropexyAbdominal/laparoscopicSuspension using mesh or native tissue to sacral promontory
A 2025 systematic review (PMID 41286733) found hysteropexy is effective for Stage I uterine prolapse to prevent recurrence.

B. Vaginal Hysterectomy ± Vault Repair

  • Standard surgical treatment for uterine prolapse in women who have completed childbearing
  • Must be combined with vault suspension (uterosacral or sacrospinous fixation) to prevent post-hysterectomy vault prolapse
  • A 2025 meta-analysis (PMID 39835651) comparing Manchester procedure vs vaginal hysterectomy found comparable outcomes for mid-compartment prolapse

C. Anterior Compartment Repair (Cystocele)

  • Anterior colporrhaphy - plication of pubocervical fascia; anatomic cure in 57-93%; higher recurrence rates than abdominal approaches

D. Posterior Compartment Repair (Rectocele/Enterocele)

  • Posterior colporrhaphy - plication of rectovaginal fascia; anatomic cure 76-96%
  • Important: levator ani plication should be avoided (causes de novo dyspareunia in up to 50%)
  • Culdoplasty (McCall, Moschcowitz) - for enterocele
  • Rectocele repair improves bulge symptoms, not constipation

E. Apical / Vault Suspension Procedures

ProcedureRouteNotes
Sacrospinous ligament fixation (SSLF)VaginalNative tissue; risk: pudendal nerve injury, right-sided vaginal deviation
Uterosacral ligament suspension (USLF)Vaginal / abdominalNative tissue; risk: ureteral kinking
SacrocolpopexyAbdominal / laparoscopicGold standard for vault prolapse; mesh attached from vaginal apex to sacral promontory; lowest recurrence rate
Robotic sacrocolpopexyRobotic-assisted laparoscopicEquivalent to laparoscopic; longer operating time
Sacrocolpopexy (abdominal) has the lowest recurrence rate of all prolapse procedures. Vaginal approaches have approximately twice the failure rate of abdominal approaches.

F. Obliterative Procedures (Colpocleisis / LeFort)

  • For elderly, medically frail patients who do not wish to retain coital function
  • LeFort colpocleisis: partial closure of the vaginal canal; very effective with low morbidity
  • Can be performed with or without hysterectomy

3. Mesh Use in Prolapse Surgery

  • The FDA issued warnings limiting vaginal mesh for prolapse repair due to complications (mesh erosion, chronic pelvic pain, dyspareunia)
  • Mesh is still used in abdominal sacrocolpopexy (well-supported evidence)
  • Autologous fascial grafts may be used as an alternative to synthetic mesh for augmentation

Summary of Treatment Algorithm

Symptomatic POP
     |
     ├── Conservative measures first (PFMT, lifestyle, local oestrogen)
     |
     ├── Pessary (if surgery declined, unfit, or temporary relief needed)
     |
     └── Surgery (failed conservative, significant symptoms)
              |
              ├── Wants uterus retained → Hysteropexy (Manchester / SSLF / sacrocolpopexy)
              |
              ├── Childbearing complete → Vaginal hysterectomy + vault suspension
              |
              ├── Apical prolapse dominant → Sacrocolpopexy (lowest recurrence)
              |
              ├── Anterior wall → Anterior colporrhaphy
              |
              ├── Posterior wall → Posterior colporrhaphy (without levator plication)
              |
              └── Elderly, no coital function desired → Colpocleisis (LeFort)

Recent Evidence (2024-2026)

  • A 2026 systematic review (PMID 41969167) on the Manchester procedure found low recurrence rates and acceptable perioperative outcomes; potential concern for future obstetric and cervical cancer screening implications.
  • A 2025 meta-analysis (PMID 39835651) found Manchester procedure vs vaginal hysterectomy had comparable anatomical outcomes for mid-compartment prolapse.
  • A 2025 systematic review (PMID 41286733) supports hysteropexy at Stage I prolapse to prevent progression and recurrence.

Sources: Berek & Novak's Gynecology, Ch. 30 | Campbell-Walsh Urology, 3-Volume Set | Schwartz's Principles of Surgery, 11th ed. | Fischer's Mastery of Surgery, 8th ed.
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