1. Concise answers to all 7 questions
2. A detailed exam-style discussion
3. Only the likely diagnosis and management plan

Case summary

1. Definition of infertility

2. Additional history

From the woman

• Menstrual history: age at menarche, cycle pattern since menarche, duration/amount of bleeding, amenorrhoea, dysmenorrhoea.
• Evidence of ovulation: premenstrual symptoms, cervical mucus changes, prior ovulation testing.
• Hyperandrogenic symptoms: onset/progression of hirsutism, acne, scalp hair loss, virilisation such as deep voice, clitoromegaly, increased muscle mass. Rapid onset suggests an androgen-secreting tumour rather than PCOS.
• Obstetric history: prior pregnancies, miscarriage, ectopic pregnancy, abortions.
• Past pelvic disease: PID, tuberculosis exposure, sexually transmitted infection, endometriosis symptoms, pelvic surgery, appendicitis.
• Endocrine history: galactorrhoea, headache/visual symptoms, thyroid symptoms, weight change, features of Cushing syndrome.
• Medical/drug history: diabetes, thyroid disease, epilepsy, medications that raise prolactin or affect fertility.
• Lifestyle: diet, exercise, smoking, alcohol, recreational drugs, stress.
• Family history: PCOS, type 2 diabetes, premature cardiovascular disease, infertility.
• Sexual history: frequency and timing of intercourse, dyspareunia, use of lubricants, contraception history.

From the husband

• Duration and frequency/timing of intercourse.
• Previous fertility and previous children.
• Pubertal/developmental history, mumps orchitis, genital trauma or surgery, varicocele, undescended testis.
• Erectile or ejaculatory dysfunction.
• Febrile illness, diabetes, medications, testosterone/anabolic steroid use.
• Smoking, alcohol, heat exposure, occupational toxins.
• History of STI, tuberculosis, chemotherapy/radiation.

3. Other examination missing

In the woman

• Blood pressure, waist circumference, full BMI assessment.
• Signs of insulin resistance: acanthosis nigricans, skin tags.
• Acne, androgenic alopecia; quantify hirsutism using modified Ferriman-Gallwey score.
• Thyroid examination.
• Breast examination for galactorrhoea.
• Look for Cushing syndrome or virilisation.
• General systemic examination.

In the husband

• Testicular size and consistency.
• Epididymis and vas deferens.
• Varicocele.
• Penile abnormalities.
• Secondary sexual characteristics and signs of hypogonadism.

4. Investigations required

A. Basic infertility evaluation of both partners

1. Semen analysis, preferably after 2-7 days abstinence. Repeat if abnormal.
   This is essential before attributing infertility solely to PCOS.
2. Pelvic transvaginal ultrasound
   • Ovarian morphology and antral follicle count.
   • Endometrial thickness.
   • Uterine lesions such as fibroids, polyps, adenomyosis.
   • Features of endometriosis if present.
3. Tubal patency assessment
   • Hysterosalpingography (HSG) or hysterosalpingo-contrast sonography.
   • Especially appropriate given four years of infertility, before prolonged ovulation induction or if there is any past history suggestive of PID or tuberculosis.

B. Confirmation and exclusion of causes of anovulation/hyperandrogenism

• Urine or serum beta-hCG before any ovulation induction.
• TSH.
• Serum prolactin.
• Total testosterone, or reliable free testosterone assessment.
• DHEAS if adrenal androgen excess is suspected.
• Early follicular phase 17-hydroxyprogesterone to exclude non-classic congenital adrenal hyperplasia.
• Consider testing for Cushing syndrome or androgen-secreting tumour if virilisation or rapidly progressive hirsutism exists.

C. Metabolic and preconception assessment in PCOS

• Blood pressure and waist circumference.
• 75-g oral glucose tolerance test is preferred to assess dysglycaemia in PCOS, particularly before pregnancy.
• Fasting lipid profile.
• HbA1c may be used if OGTT cannot be done.
• Preconception tests as indicated: CBC, blood group/Rh, rubella and hepatitis status, cervical screening, etc.

5. Most likely diagnosis and other contributing factors

Most likely diagnosis

1. Ovulatory dysfunction: oligomenorrhoea, cycles of 40-60 days.
2. Clinical hyperandrogenism: hirsutism.

Factors contributing to infertility in this case

• Chronic anovulation due to PCOS, the primary factor.
• Obesity and insulin resistance, which worsen anovulation and reduce fertility-treatment success.
• Possible infrequent or poorly timed intercourse due to the husband's travel.
• A possible male factor, not yet assessed.
• Tubal, uterine, or peritoneal factors still need exclusion because infertility may have more than one cause.

6. Stepwise management plan

Step 1: Counsel and optimise natural fertility

• Explain PCOS, chronic anovulation, treatment options, time frame, cost, and risks.
• Encourage intercourse every 2-3 days, with focused intercourse around ovulation in monitored cycles.
• Start folic acid/preconception supplementation.
• Stop smoking, avoid alcohol/recreational substances, optimise sleep and exercise.
• Aim for weight reduction of 5%-10% through a calorie-appropriate diet and regular physical activity. Even modest loss can improve ovulation and metabolic health.
• Treat hypertension, diabetes, dyslipidaemia, thyroid dysfunction, or hyperprolactinaemia if detected.

Step 2: Complete couple evaluation

• Semen analysis.
• Pelvic ultrasound.
• Consider tubal patency testing, especially after four years of infertility or before repeated ovulation-induction cycles.

Step 3: Ovulation induction

1. Letrozole is first-line pharmacological therapy
   • Given early in the menstrual cycle, under a fertility clinician's protocol.
   • Monitor follicular response with ultrasound where feasible.
   • Timed intercourse or intrauterine insemination may be used as appropriate.

1. If letrozole is unavailable, contraindicated, or unsuccessful
   • Clomiphene citrate.
   • Clomiphene plus metformin in selected women.
   • Metformin is particularly useful for metabolic indications or impaired glucose tolerance, but is less effective than letrozole as an ovulation-induction agent alone.
2. Second-line treatment
   • Low-dose gonadotrophin ovulation induction with close ultrasound monitoring.
   • Laparoscopic ovarian drilling in carefully selected clomiphene-resistant cases, particularly if laparoscopy is otherwise indicated.
3. Third-line treatment
   • IVF/ICSI if ovulation induction fails, if severe male or tubal disease is found, or if other indications arise.

7. Important complications of PCOS