Genital tuberculosis (genital TB) is a TB infection of the reproductive organs: mainly the fallopian tubes and the womb lining in women, and the epididymis and sperm ducts in men. In India it is an important cause of infertility, and it is often silent, found only when tests show blocked tubes or a thin, scarred lining. It is confirmed by testing a small sample of the womb lining, treated with a full course of anti-TB medicines, and when the tubes are already damaged, IVF usually offers the best chance of pregnancy. At Yaal Fertility Centre in Chennai, Dr. Rukkayal Fathima and our team see couples with genital TB regularly, and we put particular care into confirming the diagnosis before any treatment starts.
What Is Genital Tuberculosis?
Genital TB is caused by the same bacterium as lung TB, Mycobacterium tuberculosis. It almost never starts in the pelvis. Instead, the bacteria reach the reproductive organs through the bloodstream, usually from an earlier infection in the lungs or abdomen, often years before. Many people never knew they had TB at all, because the first infection caused few or no symptoms.
Once in the pelvis, the infection causes slow, long-lasting inflammation. The body walls it off in small clusters of inflamed tissue called granulomas, and as these heal they leave scar tissue behind. That scarring is what damages fertility.
Which Organs It Affects
- In women: the fallopian tubes are almost always affected first, because they have a rich blood supply. From the tubes, the infection often spreads to the womb lining (endometrium). The ovaries and cervix are less often involved.
- In men: the epididymis (the coiled tube behind each testicle), the vas deferens, the seminal vesicles and the prostate.
Is Genital TB Sexually Transmitted?
Almost never. Genital TB spreads through the blood from an earlier infection, not through sex. Partners are usually both checked because they may share the same past exposure, not because one has passed it to the other. Knowing this helps take away a lot of unnecessary guilt and stigma.
Why Genital TB Matters for Infertility in India
TB is still common in India, so many adults have been exposed to it at some point. In most, the immune system contains the infection quietly for life. In some, a few bacteria settle in the pelvic organs and cause damage over years, without cough, fever or weight loss.
Because the infection is so quiet, couples often spend a long time looking at lifestyle or hormones before the real cause is found. Genital TB is one reason doctors in India check the tubes and the womb lining early in a fertility workup, especially for women with:
- Blocked tubes or a hydrosalpinx with no other obvious cause.
- Very light or absent periods, or a thin lining that does not respond to treatment.
- A past history of TB in themselves or a close family member.
- Repeated IVF failure with a poor lining.
Genital TB Symptoms in Women and Men
Many people with genital TB have no symptoms at all. When there are symptoms, they are easy to mistake for other problems.
| In women | In men |
|---|---|
| Periods becoming lighter over months, or stopping | A painless lump or swelling behind the testicle (epididymis) |
| Dull, ongoing pelvic pain | Swelling or tenderness in the scrotum |
| Unusual vaginal discharge | Low semen volume |
| Bleeding between periods or after sex (less common) | Very low sperm count, or no sperm at all |
| Often nothing, with infertility the only sign |
Genital TB Symptoms in Women
When the womb lining is involved, the main change is in periods. They may become progressively scantier (hypomenorrhoea) or stop altogether (amenorrhoea), because scarred lining cannot grow and shed normally. A dull ache low in the pelvis can come from long-standing inflammation of the tubes. Many women, though, keep completely regular, painless periods while the tubes are quietly scarred.
These symptoms overlap with PCOS, thyroid problems, endometriosis and pelvic infection, which is why tests matter more than symptoms. If your periods have changed, see our guide to irregular periods.
Genital TB Symptoms in Men
The most common sign is a firm, painless swelling of the epididymis. As the infection scars the sperm ducts, it can block the path sperm take during ejaculation. This causes obstructive azoospermia (no sperm in the semen because of a blockage) or a very low count, even though the testicles may still be producing sperm normally. Because hormones and sex drive usually stay normal, the problem is often found only on a semen analysis.
How Genital TB Damages Fertility
Damage to the Fallopian Tubes
The tubes are lined with tiny hair-like cilia that move the egg and embryo towards the womb. TB destroys this lining and thickens the tube walls. On an X-ray dye test, damaged tubes can look stiff, narrowed in places or "beaded". If the far end of a tube closes, fluid collects inside and forms a hydrosalpinx, a swollen, fluid-filled tube. That fluid can leak back into the womb and lower the chance of an embryo implanting. Read more about blocked fallopian tubes and hydrosalpinx and IVF.
Damage to the Womb Lining
When TB reaches the endometrium, healthy glands and blood vessels are replaced by scar tissue. The lining becomes thin and does not respond properly to estrogen. In severe cases the walls of the womb stick together, a pattern similar to Asherman syndrome. Even a healthy embryo then struggles to implant. See our guide on how to increase endometrial thickness.
Ectopic Pregnancy Risk
Partly damaged tubes can let sperm through but trap the embryo, so women who conceive naturally after genital TB have a higher risk of an ectopic pregnancy (a pregnancy in the tube). An early scan to confirm the pregnancy is in the womb is important.
How Is Genital TB Diagnosed?
Diagnosing genital TB is difficult, and getting it right matters in both directions. Missing it leaves an active infection untreated. Over-diagnosing it means months of strong medicines for a disease that is not there, while the real cause of infertility is missed.
Tests That Confirm Genital TB
The diagnosis is made on a sample of the womb lining (endometrial biopsy), ideally taken just before a period, tested in three ways:
- CBNAAT (GeneXpert): a rapid DNA test (cartridge-based nucleic acid amplification test) that detects TB bacteria in the tissue and also checks for resistance to rifampicin, a key TB medicine.
- AFB culture: grows the bacteria in the lab. It takes several weeks but confirms live infection and shows which medicines will work.
- Histopathology: a pathologist examines the tissue under a microscope for the typical granulomas of TB.
A positive result on these tissue tests, together with the clinical picture, is what justifies treatment.
What Imaging and Surgery Can Show
| Test | What it can show |
|---|---|
| HSG (X-ray dye test) | Blocked, stiff or "beaded" tubes, an irregular womb cavity, sometimes calcified spots in the pelvis |
| Pelvic ultrasound | Hydrosalpinx, a thin or irregular lining, fluid in the pelvis |
| Laparoscopy | Small TB nodules on the pelvic lining, dense adhesions, damaged tubes; a tissue sample can be taken |
| Hysteroscopy | Scarring or adhesions inside the womb; a targeted lining sample can be taken |
| Chest X-ray | Signs of past or present lung TB |
These findings raise suspicion, but none of them alone proves active genital TB.
Why a Blood PCR or Skin Test Alone Is Not Enough
This is one of the most important points in this guide. A blood TB PCR, a Mantoux skin test or an IGRA (a TB blood test) cannot diagnose genital TB on its own. They mainly show that a person has been exposed to TB at some time, which is true of many healthy adults in India.
Starting anti-TB treatment on the basis of these tests alone is a well-recognised problem. It exposes women to months of medicines that can affect the liver, adds cost and anxiety, delays the treatment that is actually needed, and does not repair any damage that is already there. Before you start anti-TB medicines for infertility, ask your doctor what tissue evidence the diagnosis is based on. If the answer is only a blood PCR or skin test, a second opinion is reasonable.
Treatment for Genital TB
Active genital TB is treated with anti-tubercular therapy (ATT), a combination of TB medicines taken for at least six months. In India, treatment follows the guidelines of the National Tuberculosis Elimination Programme (NTEP), and it is available free through government TB centres as well as through private doctors. The approach is often still called DOTS (directly observed treatment), because regular supervision helps people complete the course.
| Phase | Usual length | Medicines usually included |
|---|---|---|
| Intensive phase | First 2 months | Isoniazid, rifampicin, pyrazinamide, ethambutol |
| Continuation phase | Next 4 months or more | Isoniazid, rifampicin, ethambutol |
Your doctor decides the exact medicines and doses, and adjusts them if the bacteria are resistant to a medicine or if side effects occur.
Completing the Course
Taking every dose for the full course is essential. Stopping early because you feel well, or missing doses, can let the bacteria survive and become resistant, and drug-resistant TB needs much longer and harder treatment.
Side Effects to Watch For
Most people manage ATT well. Common, usually mild effects include nausea, loss of appetite and tiredness. Rifampicin turns urine and tears orange-red, which is harmless. Your doctor will check liver blood tests during treatment. Contact your doctor straight away if you notice yellowing of the eyes or skin, dark urine, persistent vomiting, tingling in the hands or feet, or changes in vision.
Can You Try for Pregnancy During ATT?
Most doctors advise completing ATT and having the pelvis reassessed before fertility treatment such as IVF. If you are trying naturally or could become pregnant during treatment, tell your TB doctor, because rifampicin can reduce how well hormonal contraceptives work and some medicines need review in pregnancy.
Getting Pregnant After Genital TB Treatment
ATT kills the bacteria, but it cannot undo scarring that has already happened. What happens next depends on how much damage there is.
| After treatment | Usual next step |
|---|---|
| Tubes open, healthy lining | Try naturally for a time, with an early scan once pregnant to rule out an ectopic pregnancy |
| One or both tubes blocked | IVF, because it bypasses the tubes |
| Hydrosalpinx | Removal or clipping of the swollen tube by laparoscopy before IVF |
| Thin or scarred lining | Hysteroscopy to divide adhesions, treatment to build the lining, then frozen embryo transfer |
| Lining too damaged to recover | Discussion of options, which may include a gestational carrier |
When IVF Is the Right Choice
In IVF, eggs are collected directly from the ovaries and fertilised in the lab, and the embryo is placed straight into the womb, so the tubes are not needed. This makes IVF the most effective option when the tubes are blocked or badly damaged. If a hydrosalpinx is present, dealing with it first improves the chance of the embryo implanting.
When the Lining Is the Problem
A damaged lining is often the harder part of genital TB. A hysteroscopy can gently separate scar tissue, and hormone treatment can help the lining regrow. Your doctor will usually check the lining with scans before planning an embryo transfer, and frozen embryo transfer allows more time to prepare it.
When Can I Start IVF After ATT?
Most fertility specialists prefer that the full course of ATT is finished first. After that, the tubes, lining and ovarian reserve are reassessed, often with an ultrasound and sometimes a hysteroscopy, before stimulation begins. Your doctor will give you a plan based on your test results.
Genital TB in Men and Partner Evaluation
When a couple is investigated for infertility, both partners are checked. For men with possible genital TB, this usually includes:
- Semen analysis to look at volume, count and movement.
- Scrotal ultrasound to look for swelling, nodules or calcification in the epididymis and prostate.
- Testing of urine or semen for TB where active infection is suspected.
- Sperm retrieval if the ducts are blocked.
Because TB usually blocks the ducts rather than stopping sperm production, sperm can often be collected directly from the testicle or epididymis by procedures such as TESA and used with ICSI. See our guides to TESA and micro-TESE, male infertility and azoospermia, and our male infertility treatment page.
Living With a Genital TB Diagnosis
A diagnosis of genital TB can feel frightening, partly because of the stigma TB still carries. A few facts help:
- It is not a reflection of hygiene or behaviour. It comes from an infection picked up long ago, often without any illness at the time.
- It is not usually passed to your partner through sex.
- It is curable. The bacteria can be cleared with a full course of medicines.
- Pregnancy is still possible for many couples, with IVF when the tubes are damaged.
Talk openly with your partner and your doctor, and ask for support if the treatment period feels long. Many couples find it helps to see the six months of ATT as the first step of their fertility plan, not a delay to it.
When to See a Doctor
See a fertility specialist if:
- You have been trying for 12 months, or 6 months if you are over 35, without success.
- Your periods have become very light or stopped, especially after past TB.
- A scan or HSG has shown blocked tubes or a hydrosalpinx.
- You have been told you have genital TB on the basis of a blood test alone and want a second opinion.
- Your partner has a swelling behind the testicle or a semen test showing no sperm.
If you have had a baby before and are now struggling to conceive, see also our guide to secondary infertility.
Frequently Asked Questions About Genital TB and Infertility
Can genital tuberculosis be cured?
Yes. A full course of anti-TB medicines, usually for at least six months, clears the infection. The medicines cannot reverse scarring that has already happened in the tubes or the womb lining.
Can I get pregnant naturally after genital TB treatment?
It is possible if the infection was treated before the tubes and lining were badly damaged. If tests after treatment show open tubes and a healthy lining, your doctor may suggest trying naturally, with an early scan once you are pregnant.
Is genital TB contagious to my husband?
It is almost never passed on through sex, because it spreads through the blood from an earlier infection. Both partners are usually checked because of possible shared past exposure.
Can a TB PCR blood test alone diagnose genital TB?
No. A blood PCR, Mantoux test or IGRA mainly shows past exposure. Genital TB should be confirmed on tissue, such as CBNAAT, culture or histopathology on a sample of the womb lining.
How long after TB treatment can I start IVF?
Most specialists prefer that the full course is completed first, followed by a check of the tubes, lining and ovaries. Your doctor will plan the timing based on these results.
Does genital TB come back after treatment?
Coming back is uncommon when the full course has been taken without missing doses. Completing every dose is the best protection against relapse and drug resistance.
Can genital TB cause miscarriage?
A badly damaged womb lining can make implantation harder and may increase the chance of early pregnancy loss. Damaged tubes also raise the risk of ectopic pregnancy, so an early scan is important.
Does genital TB affect the ovaries and egg count?
The tubes and lining are affected far more often than the ovaries. Your doctor may still check your ovarian reserve, for example with an AMH test, before planning IVF.
Genital TB and Fertility Care at Yaal Fertility Centre, Chennai
At Yaal Fertility Centre, our team led by Dr. Rukkayal Fathima, MRCOG (UK) looks at genital TB with care in both directions: confirming it properly on tissue before treatment, and planning fertility treatment around the damage it has left. Our evaluation can include an HSG at our Kilpauk centre, hysteroscopy, laparoscopy with a dye test, and, where the tubes are damaged, IVF and ICSI. If you are trying to conceive, a female fertility evaluation brings these tests together in one plan.
You can see our team at any of our eight centres across Chennai: Kilpauk, Mylapore, Thiruvanmiyur, Pallikaranai, Madipakkam, Red Hills, Velappanchavadi and Tambaram.
If you have been diagnosed with genital TB, or want a second opinion before starting treatment, book a consultation with Yaal Fertility Centre.
Written by
Dr. Rukkayal Fathima
Specialist at Yaal Fertility Centre, Chennai. Providing expert guidance on fertility and women's health.
