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python -c "from pptx import Presentation; p=Presentation('/tmp/workspace/attachments/40439934-1381-4674-9ae0-01191a9d8833/Primary amenorrhea-7-1.pptx'); print('SLIDES',len(p.slides)); [print('\\n--- SLIDE %d ---'%(i+1), '\\n'.join(s.text for s in sl.shapes if getattr(s,'has_text_frame',False) and s.text.strip())) for i,sl in enumerate(p.slides)]"

Presenter script: Primary Amenorrhea

Slide 1 - Title

“Good morning everyone. Today I will be presenting on primary amenorrhea. We will cover its definition, classification, evaluation, common causes, and principles of management.”

Slide 2 - Definition and subtypes

“Primary amenorrhea is defined as absence of spontaneous menstruation by 15 years of age, regardless of secondary sexual-character development. Evaluation is also indicated if breast development has not started by age 13, or if menarche has not occurred within about three years of thelarche.

A practical approach is to divide cases into two groups: primary amenorrhea with delayed puberty, and primary amenorrhea with normal puberty.”

Slide 3 - Approach

“The key clinical question is: are secondary sexual characteristics present or absent? Breast development indicates estrogen exposure. From there, we use hormone levels and pelvic imaging to locate the problem in the hypothalamus-pituitary-ovarian axis or the genital outflow tract.”

Slide 4 - Primary amenorrhea with delayed puberty

“In delayed puberty, breast development is absent or inadequate. We classify these patients mainly using FSH levels.

A high FSH, generally above 40, suggests hypergonadotropic hypogonadism, meaning primary ovarian failure. A low or inappropriately normal FSH suggests hypogonadotropic hypogonadism, due to a hypothalamic or pituitary cause, or occasionally constitutional delay of puberty.”

Slide 5 - Delayed puberty: differential diagnosis

“Thus, delayed puberty can result either from failure of the ovaries, or failure of hypothalamic-pituitary stimulation. This distinction directs further testing and treatment.”

Slide 6 - Hypogonadotropic hypogonadism: causes

“Hypogonadotropic hypogonadism is characterized by deficient GnRH, LH, and FSH stimulation.

Causes include central nervous system tumors such as craniopharyngioma; congenital or acquired hypothalamic-pituitary disease; inflammation, tuberculosis, sarcoidosis, or prior radiotherapy.

Congenital causes include Kallmann syndrome, GnRH receptor defects, and syndromic conditions such as Prader-Willi syndrome.

Functional causes are also important, including chronic systemic illness, severe weight loss, excessive exercise, psychological stress, and endocrine disorders.”

Slide 7 - Investigations

“Investigations show low FSH and LH with low estradiol. We also assess thyroid function and prolactin, since hypothyroidism and hyperprolactinemia can suppress the reproductive axis.

Bone age helps distinguish constitutional delay from permanent hypogonadism. MRI of the brain is indicated when there are neurological symptoms, visual symptoms, raised intracranial pressure, hyperprolactinemia, or suspicion of other pituitary hormone deficiencies. In Kallmann syndrome, MRI may show absent or hypoplastic olfactory bulbs.”

Slide 8 - Treat the cause

“Management begins with correction of the underlying cause. Hypothyroidism requires thyroid hormone replacement. Hyperprolactinemia may require dopamine agonists such as cabergoline or bromocriptine. Central tumors need specialist neurosurgical and endocrine management.

For constitutional delay, reassurance and observation may be appropriate. However, if puberty is markedly delayed or causing distress, low-dose estrogen can be used for pubertal induction.”

Slide 9 - Pubertal induction

“Estrogen is started at a very low dose to mimic normal puberty and allow gradual breast and uterine development. The dose is increased gradually, usually over months.

After adequate estrogenization and once breakthrough bleeding occurs or sufficient time has elapsed, progesterone is added cyclically. This protects the endometrium and produces predictable withdrawal bleeding.”

Slide 10 - Maintenance and fertility

“After pubertal induction, patients continue estrogen with cyclic progesterone if a uterus is present.

For future fertility, treatment depends on the cause. In hypogonadotropic hypogonadism, ovulation induction may be achieved with pulsatile GnRH or gonadotropin therapy under specialist supervision.”

Slide 11 - Hypergonadotropic hypogonadism

“Hypergonadotropic hypogonadism presents with sexual infantilism, high FSH and LH, and low estrogen. The pituitary is functioning and increases gonadotropin production, but the ovaries fail to respond. Therefore, this represents primary ovarian insufficiency or gonadal dysgenesis.”

Slide 12 - Causes

“Important causes include Turner syndrome, pure gonadal dysgenesis, Fragile X premutation-associated ovarian insufficiency, infections, galactosemia, autoimmune disease, prior ovarian surgery, chemotherapy, or pelvic radiotherapy.

Enzyme defects, such as 17-alpha-hydroxylase deficiency and aromatase deficiency, and gonadotropin-resistant ovary syndrome are less common causes.”

Slide 13 - Turner syndrome

“Turner syndrome, commonly 45,X, is the most frequent cause of primary amenorrhea with hypergonadotropic hypogonadism.

Typical features include short stature, webbed neck, shield chest, widely spaced nipples, cubitus valgus, and absent or incomplete pubertal development.

We must also screen for associated cardiac abnormalities, especially coarctation of the aorta and bicuspid aortic valve, renal anomalies, autoimmune thyroid disease, diabetes, and hypertension.”

Slide 14 - Turner syndrome: key point

“The key message is to recognize Turner syndrome early. Timely coordinated care is important for growth, pubertal induction, cardiovascular surveillance, renal assessment, and psychosocial support.”

Slide 15 - Pure gonadal dysgenesis and Swyer syndrome

“In XX gonadal dysgenesis, the external phenotype is female, but the gonads are streak gonads and puberty does not occur.

In Swyer syndrome, the karyotype is 46,XY with gonadal dysgenesis. Because there is no anti-Mullerian hormone, the uterus and upper vagina are present. These dysgenetic gonads carry a significant malignancy risk, so gonadectomy is recommended once the diagnosis is established.”

Slide 16 - Enzyme deficiencies and autoimmune syndromes

“17-alpha-hydroxylase deficiency causes low sex steroid production and may also cause hypertension and hypokalemia due to mineralocorticoid excess.

Aromatase deficiency also leads to inadequate estrogen production.

In gonadotropin-resistant ovary syndrome, follicles may be present, but they do not respond to FSH and LH.

Polyglandular autoimmune syndromes should be suspected when ovarian failure coexists with conditions such as Addison disease, autoimmune thyroid disease, diabetes, or hypoparathyroidism.”

Slide 17 - Clinical evaluation and investigations

“Clinical assessment should look for short stature, cardiac signs, hypertension, diabetes, and hypothyroidism.

Typical laboratory findings are raised FSH and LH with low estrogen. Karyotyping is essential, particularly when gonadal dysgenesis is suspected. Pelvic ultrasound evaluates the uterus and ovaries, while thyroid function and glucose testing help identify associated endocrine disease.”

Slide 18 - Management

“Management includes gradual estrogen therapy for pubertal induction, followed by progesterone if a uterus is present.

In girls with Turner syndrome, growth hormone is most effective when started early, before epiphyseal closure.

In patients with Y-chromosome material or XY gonadal dysgenesis, prophylactic gonadectomy is performed because of the risk of gonadal tumors.”

Slide 19 - Primary amenorrhea with normal puberty

“Now we move to patients with normal breast development and normal estrogenization. In these patients, the ovaries are generally functioning. The main concern is an anatomical problem involving the uterus, cervix, vagina, or genital outflow tract.”

Slide 20 - Causes with normal puberty

“The important causes include cryptomenorrhea due to outflow obstruction, Mullerian agenesis or MRKH syndrome, androgen insensitivity syndrome, PCOS, hypothalamic dysfunction, and hyperprolactinemia.”

Slide 21 - Cryptomenorrhea

“Cryptomenorrhea means menstruation is occurring internally, but menstrual blood cannot exit because of an obstruction.

Causes include imperforate hymen, transverse vaginal septum, vaginal agenesis, and cervical agenesis.”

Slide 22 - Clinical features of outflow obstruction

“These patients often present after normal pubertal development with cyclical lower abdominal or pelvic pain but no visible menses.

There may be a lower abdominal mass due to hematometra or hematocolpos, urinary retention from compression by a distended vagina, or a bulging bluish hymen in imperforate hymen. Ultrasound helps identify retained blood.”

Slide 23 - Evaluation of obstruction

“Careful inspection of the external genitalia and appropriate pelvic imaging are central to diagnosis. It is important to distinguish imperforate hymen from a transverse vaginal septum or more complex Müllerian anomaly, because treatment differs.”

Slide 24 - Management of cryptomenorrhea

“Imperforate hymen is treated surgically by hymenotomy or hymenectomy to drain the retained menstrual blood. The procedure should be planned and performed carefully to avoid infection and preserve normal anatomy.

A transverse vaginal septum often requires surgical excision and anastomosis. Cervical agenesis is complex and should be managed in a specialized center; in some cases, hysterectomy may be required.”

Slide 25 - MRKH syndrome

“MRKH syndrome, or Mayer-Rokitansky-Küster-Hauser syndrome, is a congenital absence or severe underdevelopment of the uterus, cervix, and upper vagina in a 46,XX individual.

The ovaries are normal, so estrogen production, breast development, and ovulation are normal. The patient usually presents with primary amenorrhea despite otherwise normal pubertal development.

Renal and skeletal anomalies may coexist, so they should be actively assessed.”

Slide 26 - Diagnosis of MRKH syndrome

“MRKH should be suspected in a patient with primary amenorrhea and normal secondary sexual characteristics. Pelvic ultrasound, and sometimes MRI, confirms absence or underdevelopment of the uterus.

Karyotyping helps differentiate MRKH, which is 46,XX, from androgen insensitivity syndrome, which is 46,XY.”

Slide 27 - Management of MRKH syndrome

“No hormonal treatment is needed because ovarian estrogen production is normal.

The focus is on counseling, sexual function, and individualized vaginal lengthening if needed. Progressive vaginal dilation is generally the first-line approach. Vaginoplasty is considered when dilation is unsuccessful or unsuitable.

Patients can have genetic offspring using their own oocytes with assisted reproduction and gestational surrogacy where legally available. Psychological support is an essential part of care.”

Slide 28 - Androgen insensitivity syndrome

“In complete androgen insensitivity syndrome, the patient has a 46,XY karyotype and testes, but tissues cannot respond to androgens because of an androgen receptor mutation.

Anti-Mullerian hormone from the testes causes regression of the uterus and upper vagina. However, lack of androgen action results in female external genitalia. Breast development is normal because testosterone is converted to estrogen, but pubic and axillary hair is scanty or absent.”

Slide 29 - AIS: clinical clue

“A helpful clinical clue is a phenotypic female with normal breast development, absent uterus, a short blind-ending vagina, and absent or sparse pubic hair. Some patients are diagnosed when an inguinal hernia is found to contain a testis.”

Slide 30 - Differentiate AIS from MRKH

“AIS and MRKH both present with primary amenorrhea, normal breast development, and an absent uterus.

The key differences are that MRKH patients are 46,XX with normal ovaries and normal pubic hair. AIS patients are 46,XY, have testes, male-range testosterone, and sparse or absent pubic and axillary hair.”

Slide 31 - Management of AIS

“Management requires a multidisciplinary team and sensitive counseling. Gonadectomy is often deferred until after spontaneous puberty, because the testes provide estrogen through aromatization and allow breast development.

After gonadectomy, estrogen replacement is needed for bone health and maintenance of secondary sexual characteristics. Progesterone is not needed because there is no uterus.

Vaginal dilation can address vaginal shortening. Fertility is not possible with current options because there is no uterus or ovaries.”

Slide 32 - PCOS

“PCOS can occasionally present as primary amenorrhea, particularly when there is marked hyperandrogenism. Clinical clues are hirsutism, acne, obesity, or insulin resistance.

Assessment includes exclusion of pregnancy, thyroid disease, hyperprolactinemia, non-classic congenital adrenal hyperplasia, and androgen-secreting tumors where appropriate. Ultrasound may demonstrate polycystic ovarian morphology, but diagnosis is clinical and biochemical, not ultrasound alone.”

Slide 33 - Hypothalamic dysfunction

“Functional hypothalamic dysfunction occurs with significant weight loss, excessive exercise, nutritional deficiency, or psychological stress. FSH, LH, and estradiol are typically low.

Management focuses on restoring adequate energy intake, reducing excessive exercise, addressing stress and mental health, and protecting bone health. MRI is considered if there is concern for a structural hypothalamic or pituitary lesion.”

Slide 34 - Hyperprolactinemia

“Hyperprolactinemia suppresses GnRH secretion and can therefore cause amenorrhea. Serum prolactin should be checked, especially when there is galactorrhea, headaches, visual symptoms, or use of prolactin-raising medications.

Although it more commonly presents as secondary amenorrhea, it can occasionally contribute to primary amenorrhea.”

Slide 35 - Closing

“To summarize, primary amenorrhea should be approached systematically. First assess secondary sexual characteristics, then measure gonadotropins, evaluate the uterus and ovaries with imaging, and perform karyotyping when indicated.

Early diagnosis is important not only for menstruation and fertility, but also for bone health, tumor prevention, associated medical conditions, and psychosocial wellbeing. Thank you.”

Accuracy note for delivery: Your slide on DHEAS describes it as a test to rule out constitutional delay. Avoid saying that. DHEAS is not used to rule out constitutional delay of puberty. Also, current ACOG guidance supports evaluation by age 15, no breast development by age 13, or no menarche within three years of breast development, as stated in this ACOG guidance.

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MBBS-Level Presentation Script: Primary Amenorrhea

Use this as speaker notes. Aim for about 8-10 minutes. Do not read every bullet verbatim. Explain the clinical logic.

Slide 1 - Title

“Good morning. Today I will present primary amenorrhea, focusing on definition, clinical approach, important causes, investigations, and management.”

Slide 2 - Definition

“Primary amenorrhea means absence of menarche by the age of 15 years in a girl with normal secondary sexual characteristics. It should also be evaluated if there is no breast development by 13 years of age.

Clinically, we divide primary amenorrhea into two groups: those with delayed puberty, meaning absent secondary sexual characters, and those with normal puberty but absent menstruation.”

Slide 3 - Basic approach

“The most important initial step is to assess whether secondary sexual characteristics, especially breast development, are present.

Breast development indicates estrogen action. If breast development is absent, we suspect a problem in the hypothalamic-pituitary-ovarian axis. If breast development is normal, we think more about Müllerian anomalies, androgen insensitivity syndrome, or genital outflow obstruction.”

Slide 4 - Delayed puberty and FSH

“In primary amenorrhea with delayed puberty, serum FSH helps us localize the defect.

High FSH suggests ovarian failure, called hypergonadotropic hypogonadism. Low or inappropriately normal FSH suggests a hypothalamic or pituitary cause, called hypogonadotropic hypogonadism. Constitutional delay is also considered in this group.”

Slide 5 - Transition

“So, in a patient without breast development, the next important step is to measure FSH, LH, and estradiol, and then investigate according to whether FSH is low or high.”

Hypogonadotropic Hypogonadism

Slide 6 - Causes

“Hypogonadotropic hypogonadism occurs due to inadequate secretion of GnRH from the hypothalamus or FSH and LH from the pituitary.

Causes include CNS tumors, especially craniopharyngioma, infiltrative disorders such as tuberculosis or sarcoidosis, previous cranial radiotherapy, and congenital pituitary disorders.

Kallmann syndrome is an important congenital cause. It is associated with hypogonadotropic hypogonadism and anosmia or reduced sense of smell.

Functional causes include chronic illness, malnutrition, severe weight loss, excessive exercise, and psychological stress.”

Slide 7 - Investigations

“Laboratory findings show low FSH, low LH, and low estradiol.

We should check thyroid function and serum prolactin because hypothyroidism and hyperprolactinemia can affect GnRH secretion.

Bone age assessment is useful if constitutional delay is suspected. MRI brain is indicated when there are headaches, visual symptoms, neurological signs, hyperprolactinemia, or other pituitary hormone deficiencies.

In Kallmann syndrome, MRI may show absent or hypoplastic olfactory bulbs.”

Slide 8 - Management of underlying cause

“Management depends on the cause. Hypothyroidism is treated with levothyroxine. Hyperprolactinemia may be treated with dopamine agonists such as cabergoline or bromocriptine.

A pituitary or hypothalamic tumor needs referral for neurosurgical and endocrine management.

In constitutional delay of puberty, reassurance and regular follow-up are often sufficient. If there is marked delay or psychological distress, pubertal induction can be started.”

Slide 9 - Pubertal induction

“For pubertal induction, low-dose estrogen is started and gradually increased over time. This mimics normal puberty and promotes breast development, uterine growth, and bone mineralization.

After adequate estrogen exposure, progesterone is added cyclically if the uterus is present. Progesterone protects the endometrium and produces withdrawal bleeding.”

Slide 10 - Maintenance and fertility

“After puberty has been induced, maintenance hormone therapy consists of estrogen and cyclic progesterone in patients with a uterus.

Fertility is possible in many cases. Patients with hypogonadotropic hypogonadism may require ovulation induction with pulsatile GnRH or exogenous gonadotropins under specialist care.”

Hypergonadotropic Hypogonadism

Slide 11 - Concept

“Hypergonadotropic hypogonadism means primary ovarian failure. The ovaries fail to produce estrogen, so negative feedback to the pituitary is absent. As a result, FSH and LH levels become high.

Clinically, patients usually have delayed puberty or sexual infantilism.”

Slide 12 - Causes

“The most important causes include Turner syndrome and pure gonadal dysgenesis.

Other causes are Fragile X premutation-related ovarian insufficiency, autoimmune ovarian failure, galactosemia, infections such as mumps oophoritis, and iatrogenic causes like ovarian surgery, chemotherapy, and radiotherapy.

Rare causes include 17-alpha-hydroxylase deficiency, aromatase deficiency, and gonadotropin-resistant ovary syndrome.”

Slide 13 - Turner syndrome

“Turner syndrome is the commonest cause of hypergonadotropic hypogonadism in adolescents. The typical karyotype is 45,X, although mosaic forms can occur.

Clinical features include short stature, webbed neck, shield chest, widely spaced nipples, cubitus valgus, and absent or incomplete pubertal development.

Associated conditions include coarctation of the aorta, bicuspid aortic valve, renal anomalies, hypertension, autoimmune thyroiditis, diabetes, and hearing problems.”

Slide 14 - Turner syndrome: clinical importance

“In Turner syndrome, diagnosis is important because management is not limited to amenorrhea. These patients need cardiac, renal, thyroid, metabolic, hearing, and growth assessment.

They require long-term multidisciplinary follow-up.”

Slide 15 - Pure gonadal dysgenesis and Swyer syndrome

“In pure XX gonadal dysgenesis, the patient has a female karyotype and female external genitalia, but streak gonads and absent puberty.

Swyer syndrome is 46,XY pure gonadal dysgenesis. The patient has female external genitalia and a uterus because anti-Müllerian hormone is absent. However, the gonads are dysgenetic and carry a significant risk of malignancy.

Therefore, gonadectomy is indicated after diagnosis in patients with Y-chromosome material.”

Slide 16 - Other rare causes

“17-alpha-hydroxylase deficiency should be suspected in a patient with delayed puberty, hypertension, and hypokalemia. It causes reduced cortisol and sex steroid synthesis, with excess mineralocorticoid activity.

Aromatase deficiency causes failure of estrogen production.

In gonadotropin-resistant ovary syndrome, the ovaries may contain follicles but cannot respond adequately to FSH and LH.”

Slide 17 - Evaluation

“In hypergonadotropic hypogonadism, FSH and LH are elevated, while estradiol is low.

Karyotyping is essential, especially in young patients with ovarian failure. Pelvic ultrasound assesses the uterus and gonads. Thyroid function, blood glucose, and screening for associated autoimmune disease may also be required.”

Slide 18 - Management

“Management includes estrogen replacement for pubertal induction, followed by cyclic progesterone if a uterus is present.

In Turner syndrome, growth hormone is used in childhood to improve final height.

If a patient has Y-chromosome material or XY gonadal dysgenesis, gonadectomy is performed to reduce the risk of gonadal malignancy.”

Primary Amenorrhea with Normal Puberty

Slide 19 - Concept

“In patients with normal breast development, estrogen production is usually adequate. Therefore, the problem may lie in the uterus, vagina, cervix, or genital outflow tract.

These patients need careful pelvic examination and pelvic ultrasound.”

Slide 20 - Causes

“Important causes include cryptomenorrhea due to genital outflow obstruction, Müllerian agenesis or MRKH syndrome, and complete androgen insensitivity syndrome.

PCOS, hypothalamic dysfunction, and hyperprolactinemia can occasionally present as primary amenorrhea, but they are more commonly causes of secondary amenorrhea.”

Cryptomenorrhea

Slide 21 - Definition and causes

“Cryptomenorrhea means that menstruation occurs internally, but menstrual blood cannot flow out due to obstruction.

Causes include imperforate hymen, transverse vaginal septum, cervical agenesis, and some forms of vaginal agenesis.”

Slide 22 - Clinical features

“These patients usually have normal breast development and normal cyclical hormonal activity. They present with primary amenorrhea associated with cyclical lower abdominal pain.

Other findings include a lower abdominal mass due to hematometra or hematocolpos, urinary retention, and a bulging bluish hymen in imperforate hymen.”

Slide 23 - Diagnosis

“Diagnosis is based on genital examination and pelvic ultrasound. Ultrasound can identify hematocolpos, hematometra, or other structural abnormalities.

MRI may be needed when there is suspicion of a transverse vaginal septum or a complex Müllerian anomaly.”

Slide 24 - Management

“Imperforate hymen is treated by surgical incision or hymenectomy to allow drainage of retained menstrual blood.

A transverse vaginal septum requires surgical excision and reconstruction. Cervical agenesis is difficult to manage and should be referred to a specialist center.”

MRKH Syndrome

Slide 25 - MRKH syndrome

“MRKH syndrome, or Mayer-Rokitansky-Küster-Hauser syndrome, is congenital agenesis or hypoplasia of the uterus, cervix, and upper two-thirds of the vagina.

The patient has a 46,XX karyotype and normal ovaries. Therefore, estrogen production, breast development, external genitalia, and ovulation are normal.

The usual presentation is primary amenorrhea in an otherwise normally developed adolescent girl.”

Slide 26 - Diagnosis

“Diagnosis is suspected when a patient has normal secondary sexual characteristics but an absent uterus on ultrasound.

Karyotyping distinguishes MRKH syndrome from androgen insensitivity syndrome. MRKH patients are 46,XX, whereas patients with complete androgen insensitivity syndrome are 46,XY.”

Slide 27 - Management

“No hormone therapy is required because ovarian function is normal.

The main issues are counseling, sexual function, vaginal length, fertility counseling, and psychological support. Vaginal dilators are the first-line approach if vaginal lengthening is required. Vaginoplasty may be considered when dilation is unsuccessful.

Patients may have biological offspring using their own oocytes with assisted reproduction and gestational surrogacy where legally permitted.”

Androgen Insensitivity Syndrome

Slide 28 - Complete androgen insensitivity syndrome

“In complete androgen insensitivity syndrome, the karyotype is 46,XY. The testes produce testosterone and anti-Müllerian hormone, but the body cannot respond to androgens because of an androgen receptor defect.

Anti-Müllerian hormone causes absence of the uterus and upper vagina. Because androgen action is absent, the external genitalia are female.

Breast development is normal due to peripheral conversion of testosterone to estrogen.”

Slide 29 - Clinical features

“Clinical clues include primary amenorrhea, normal breast development, a short blind-ending vagina, absent uterus, and sparse or absent pubic and axillary hair.

Some patients present with an inguinal hernia that contains an undescended testis.”

Slide 30 - Differentiate AIS from MRKH

“The major differential diagnosis is MRKH syndrome.

In MRKH syndrome, the karyotype is 46,XX, the ovaries are present, and pubic and axillary hair is normal.

In complete androgen insensitivity syndrome, the karyotype is 46,XY, testes are present, testosterone is in the male range, and pubic and axillary hair is scanty or absent.”

Slide 31 - Management

“Management requires sensitive counseling and a multidisciplinary team.

Gonadectomy is usually considered after completion of spontaneous puberty because the testes provide estrogen through aromatization and help normal breast development. After gonadectomy, estrogen replacement is needed.

Progesterone is not needed because the uterus is absent. Vaginal dilators or vaginoplasty may be considered if required for sexual function.”

Other Causes

Slide 32 - PCOS

“PCOS may occasionally present with primary amenorrhea, particularly in patients with obesity, hirsutism, acne, or biochemical hyperandrogenism.

However, diagnosis in adolescents requires caution because irregular cycles and polycystic ovarian morphology can occur normally during early puberty. We should exclude other causes of hyperandrogenism and amenorrhea before diagnosing PCOS.”

Slide 33 - Hypothalamic dysfunction

“Functional hypothalamic amenorrhea is associated with low body weight, restrictive eating, excessive exercise, or psychological stress.

FSH, LH, and estradiol are low. Management focuses on nutritional rehabilitation, correction of energy imbalance, reduction of excessive exercise, and mental health support.

This condition is important because prolonged estrogen deficiency can reduce bone mineral density.”

Slide 34 - Hyperprolactinemia

“Hyperprolactinemia suppresses GnRH secretion and causes low gonadotropins, leading to amenorrhea.

We should measure serum prolactin, especially when there is galactorrhea, headache, visual disturbance, or use of drugs that elevate prolactin.

It is usually a cause of secondary amenorrhea, but it can occasionally present before menarche.”

Slide 35 - Conclusion

“To conclude, the evaluation of primary amenorrhea should be systematic.

First, assess secondary sexual characteristics. Second, determine whether the uterus is present on ultrasound. Third, measure FSH, LH, estradiol, prolactin, and TSH, and perform karyotyping when indicated.

Early diagnosis is important for pubertal development, bone health, fertility counseling, prevention of gonadal malignancy, and psychosocial support. Thank you.”

Important corrections to make before presenting

Definition: Do not say “absence of menses by 15 years regardless of secondary sexual characters.” Say:
- No menarche by 15 years, or
- No breast development by 13 years.
DHEAS: It is not used to rule out constitutional delay. It is used mainly when evaluating hyperandrogenism or adrenal causes.
Late-onset CAH: Do not list it as a congenital cause of hypogonadotropic hypogonadism. It more commonly causes hyperandrogenism and menstrual irregularity.
AIS tumor terminology: Avoid specifically calling the tumor “dysgerminoma.” Say “risk of gonadal germ-cell tumor increases with age, so gonadectomy is considered after spontaneous puberty.”
PCOS: Do not diagnose PCOS on ultrasound alone, especially in adolescents.

The basic diagnostic principles above align with Berek & Novak’s Gynecology, pp. 1856 and 1870, and the age threshold is consistent with ACOG’s amenorrhea guidance.

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