Pelvic tuberculosis (genital TB) is one of the most significant and most underdiagnosed causes of female infertility in India. India accounts for approximately 26% of the global tuberculosis burden — and a significant proportion of women with pulmonary or extrapulmonary TB develop pelvic involvement that damages the fallopian tubes, uterine lining, and ovaries, often causing permanent tubal occlusion and endometrial destruction without the woman ever knowing she had TB.

Dr. Shachi Singh, consultant gynaecologist and fertility specialist at Prakash Hospital, Sector 33, Noida, explains.

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How Pelvic TB Develops

Mycobacterium tuberculosis reaches the pelvic organs through haematogenous (blood-borne) spread from a primary lung focus — most often years after the original pulmonary infection, which may have been asymptomatic or mild and not diagnosed. The fallopian tubes are the most common primary site of pelvic TB, affected in 90 to 100% of cases. From there, TB spreads to:

• The endometrium (uterine lining) — in 50 to 60% of cases
• The ovaries — in 20 to 30%
• The cervix — in 5 to 15%
• The vagina and vulva — rarely

By the time pelvic TB causes symptoms significant enough to prompt investigation, the damage to the reproductive organs is often extensive.

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How Pelvic TB Damages Fertility

Tubal damage: TB causes intense granulomatous inflammation in the fallopian tube walls, destroying the ciliated epithelium and causing fibrosis and occlusion — first at the fimbriated end, then along the tube. The tubes become rigid, fibrotic pipes incapable of normal function. Bilateral tubal occlusion — the result of bilateral pelvic TB — makes natural conception impossible.

Endometrial destruction: TB endometritis destroys the endometrial basal layer — the regenerative layer of the uterine lining. The result is Asherman's syndrome (intrauterine adhesions), obliteration of the uterine cavity, and an endometrium incapable of supporting implantation. Even with patent tubes after anti-TB treatment, IVF embryos cannot implant in a damaged endometrium.

Ovarian involvement: Ovarian TB causes oophoritis and can destroy follicular reserves.

Pelvic adhesions: The extensive peritoneal inflammation of TB causes dense pelvic adhesions fixing the tubes, ovaries, and other pelvic structures.

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Why Pelvic TB Is So Frequently Missed

Asymptomatic or minimally symptomatic: The insidious progression of pelvic TB produces few or no symptoms until fertility assessment reveals blocked tubes. Unlike acute PID (which causes pelvic pain and fever), pelvic TB typically progresses silently.

Negative Mantoux test: 10 to 20% of active TB cases have a false-negative Mantoux (tuberculin skin test) — a negative test does not exclude TB.

Normal chest X-ray: Most women with pelvic TB have no active pulmonary TB visible on chest X-ray — the lung focus has healed.

Normal ESR and CRP: Chronic low-grade TB may not elevate inflammatory markers significantly.

Difficulty culturing Mycobacterium: The organism grows very slowly (weeks to months) and endometrial specimens often have a low bacillary load.

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Investigation

In any Indian woman with bilateral tubal occlusion on hysterosalpingography (HSG) or at laparoscopy — pelvic TB must be excluded before proceeding to IVF, particularly if:

• There is a history of pulmonary TB in the patient or a first-degree family member
• The woman has lived in a high-TB-prevalence area
• The tubes appear rigid, fibrotic, or "pipe-stem" at laparoscopy
• There are features of Asherman's syndrome without prior uterine surgery

Tests:

• Endometrial biopsy (sent for TB PCR, culture, and histology) — taken in the premenstrual phase (highest yield). TB PCR is the most sensitive modern test.
• Menstrual blood TB PCR
• Laparoscopy — direct visualisation of tubal and peritoneal TB lesions (granulomas, beaded tubes, characteristic adhesions), with biopsy
• IGRA (Interferon-Gamma Release Assay — QuantiFERON-TB Gold) — a blood test more specific than Mantoux for TB exposure

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Treatment

Anti-tuberculosis therapy (ATT): First-line ATT (isoniazid, rifampicin, pyrazinamide, ethambutol) for 6 months — the standard regimen for extrapulmonary TB. Kills the active TB organisms and prevents further spread and damage.

What ATT cannot do: Reverse structural damage already done to the tubes and endometrium. If the tubes are fibrosed and occluded, ATT will not restore tubal patency. If the endometrium is severely damaged, ATT will not regenerate it.

Fertility after pelvic TB:

• With mild tubal involvement and minimal endometrial damage (caught early): some women can achieve pregnancy after ATT, with or without surgical adhesiolysis
• With bilateral tubal occlusion and intact endometrium: IVF (bypassing the tubes) offers pregnancy rates approaching those of other causes of tubal infertility
• With severe endometrial TB and Asherman's syndrome: the prognosis for pregnancy is significantly worse, even with IVF. Gestational surrogacy may be the only option in severe uterine involvement.

Waiting after ATT before fertility treatment: Most fertility specialists recommend completing the full 6-month ATT course and confirming that TB is no longer active (negative follow-up tests) before attempting IVF.

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Fertility Care in Noida and Greater Noida

Dr. Shachi Singh at Prakash Hospital, Sector 33, Noida, investigates for pelvic TB in women with unexplained infertility and blocked tubes across Noida and Greater Noida — and coordinates anti-TB treatment and subsequent fertility management.

To book a consultation with Dr. Shachi Singh, call: +91 97023 46853

Clinic Hours: Monday to Saturday, 9 AM – 6 PM | Sunday, 10 AM – 2 PM

Clinic Address: D-12A, 12B, Sector-33, G.B. Nagar, Noida, Uttar Pradesh 201301

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This blog is for educational purposes only. Please consult Dr. Shachi Singh for assessment specific to your fertility investigation.