Obstetrics & GynaecologyDr. Hrishikesh PaiWHO Infertility Guidelines

Director, Fortis Bloom IVF Centre, Fortis Bloom IVF Centre

Part 4 of 13 in Diagnosis and Management of Infertile Couple - Latest Guidelines by WHO

Male Factor Infertility: Semen Testing and Varicocele Treatment

August 28, 2026

Roughly half of all infertility cases involve a male factor, yet Dr. Pai told the room that many husbands resist being tested at all. WHO's 2025 guideline addresses that directly: a mandatory couple-based workup now includes complete male evaluation from the first visit, not as a fallback once female causes are ruled out.

Why semen testing has to come first, not last

Semen analysis against WHO's reference standards is the starting point. If a result is abnormal, Dr. Pai repeats the test after 11 weeks, since sperm production takes roughly that long to turn over. His own centres now run automated semen analysis, using Computer-Assisted Semen Analysis (CASA) systems that improve diagnostic accuracy when the sample is prepared correctly, and that he described as inexpensive to run: the analyser costs about 1,500 dollars, with each individual test costing 5 to 7 dollars.

Treating clinical varicocele

For men with a clinical varicocele and abnormal semen parameters who are not undergoing IVF, WHO suggests surgical or radiological treatment. Dr. Pai's preferred surgical approach is high ligation. Where sperm counts are effectively zero, he described using microscopic testicular sperm extraction under an operating microscope to retrieve sperm directly, followed by IVF with intracytoplasmic sperm injection to fertilise the retrieved eggs. He cited one patient, a Sudanese man settled in France with azoospermia, who had failed treatment across eight countries, including Denmark, Sweden, the UK and France, over 17 years before achieving a pregnancy through this technique at Dr. Pai's Gurgaon centre. Because the couple's religious background ruled out donor sperm, a biopsy-based retrieval was the only option that matched both the clinical picture and the family's wishes.

This guide is based on a live Jivo Masterclass — Dr. Hrishikesh Pai taught doctors across Africa on February 15, 2026.

FROM THE LIVE Q&A

DR

Dr. Edgar Mumba

For IUI stimulation, what is your combination of medication, and when do you start it?

HP

Dr. Hrishikesh Pai

Clomiphene 50 mg twice daily from day 2 to day 6, plus HMG 150 IU on days 7 and 9. HMG is avoided in PCOS patients because of hyperstimulation risk; PCOS is diagnosed by an antral follicle count above 15 with a necklace pattern on ultrasound and a high AMH, which Dr. Pai called their gold-standard test. He also recommends AMH testing for daughters to check ovarian reserve, with egg freezing considered before age 35 if a woman is not yet married.

See all 11 questions from this masterclass →

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Frequently Asked Questions

If genital tuberculosis is diagnosed, what are the clinical findings in the uterus?

Most commonly amenorrhoea or very scanty periods, occasionally heavy bleeding. Diagnosis relies on TB-PCR and D&C with histopathology, but because PCR can be falsely negative, Dr. Pai prefers laparoscopy for direct visual confirmation, alongside a chest X-ray, palpation of cervical and groin lymph nodes, family history, sputum AFB testing on three consecutive days where indicated, interferon-gamma release assays and a Mantoux test. Treatment is AKT-4 for two months followed by AKT-2 continuation therapy, nine months in total, which must be completed fully to avoid multidrug-resistant TB; laparoscopy and hysteroscopy are repeated afterward before trying IUI, and IVF only if that fails.

Why should we consider IVF over intrauterine insemination, and what are the complications of IVF?

WHO's pathway is stepwise: rule out anovulation with day-21 progesterone above 10 ng/ml, rule out tubal block with an HSG, rule out uterine factors with 2D or 3D ultrasound, and test semen; if all are normal, try timed intercourse with clomiphene for 3 to 6 months, then 2 to 3 cycles of IUI (up to 6 if needed), which Dr. Pai's practice sees succeed in about 30% of cases, before moving to IVF. He named failure to conceive as IVF's biggest drawback, though across three attempts roughly 80 to 90% of patients achieve pregnancy, and frozen-embryo banking means most repeat cycles no longer require re-stimulation. In his estimate, about 80% of patients never need IVF at all if laparoscopy, hysteroscopy, ultrasound and a competent IUI lab are available; only 20% require it.

What are the factors that reduce the success rate of IVF?

Age is the dominant factor. Citing the US SART and UK HFEA registries, Dr. Pai gave approximate success rates by age band: under 35 about 40%, 35 to 37 roughly 35 to 40%, 37 to 39 about 25 to 30%, 39 to 41 about 15%, and over 41 about 5 to 10%, because genetic abnormality rates in eggs rise with age even when embryos form. Low ovarian reserve, with AMH sometimes as low as 0.3 to 0.4 ng/ml, is the other major factor; for patients who decline donor eggs, he tries platelet-rich plasma injected under ultrasound or laparoscopic guidance and, in some cases, stem-cell therapy, using the laparoscopy to also rule out genital tuberculosis, which can itself lower ovarian reserve.

Many women presenting with infertility have a white, cheese-like vaginal discharge. Could there be a connection?

This is usually a fungal infection, and both partners need treatment, along with lactobacillus supplements. Because a wet mount or culture can miss organisms such as Trichomonas, Chlamydia or Mycoplasma, Dr. Pai often gives combination therapy (an antifungal such as fluconazole plus an antibiotic such as azithromycin) with local clotrimazole cream, and screens for diabetes, since fungal infections are common in patients who are obese or diabetic.

A woman with blood group O negative delivered her first child and received anti-D prophylaxis, then had a miscarriage at 16 weeks. How should such couples be managed?

If antibody titres are very high, management becomes difficult. Where it is legally available, Dr. Pai suggested surrogacy carried by an Rh-negative surrogate as a way to avoid maternal antibody-mediated complications and repeated interventions such as cord blood transfusion, rather than risking complications like kernicterus in the baby.

Why does WHO's 2025 guideline require testing both partners from the first visit?

Roughly half of all infertility cases involve a male factor, so the guideline includes a complete male evaluation as part of the mandatory couple-based workup from the first visit, rather than as a fallback once female causes have been ruled out.

If a semen analysis comes back abnormal, when should it be repeated?

An abnormal semen test is repeated after 11 weeks, since sperm production takes roughly that long to turn over.

How much does it cost to run computer-assisted semen analysis?

The systems are inexpensive to run: the analyser itself costs about 1,500 dollars, with each individual test costing 5 to 7 dollars.

What treatment does WHO recommend for a clinical varicocele with abnormal semen parameters?

For men with a clinical varicocele and abnormal semen parameters who are not undergoing IVF, WHO suggests surgical or radiological treatment; the preferred surgical approach is high ligation.

How is pregnancy achieved when a man has a zero sperm count?

Where sperm counts are effectively zero, microscopic testicular sperm extraction under an operating microscope retrieves sperm directly, followed by IVF with intracytoplasmic sperm injection to fertilise the retrieved eggs. A Sudanese patient settled in France achieved pregnancy this way after eight failed attempts across four countries over 17 years.

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