The fallopian tubes are where conception happens: the egg is picked up from the ovary, meets the sperm in the outer part of the tube, and the embryo travels down into the womb over several days. Damage to the tubes accounts for roughly a quarter to a third of female infertility in Sri Lanka, often without any symptoms at all. Being told "your tubes are blocked" is frightening and the advice that follows is frequently muddled. This article explains what tubal damage is, how it is tested, and — most importantly — how the right next step depends on which tube is affected and how.

How tubes become damaged

  • Pelvic infection — the commonest cause worldwide. Chlamydia and gonorrhoea often cause no symptoms, yet silently scar the tube lining; infection after miscarriage, delivery or a procedure, and tuberculosis (still seen in South Asia), can do the same.
  • Endometriosis — adhesions distort the tubes and ovaries (see our endometriosis guide).
  • Previous surgery — appendicitis, ovarian cyst operations, caesarean section or a previous ectopic pregnancy can leave adhesions.
  • Sterilisation — deliberate blockage, which some women later wish to reverse.

Blockage can be at the inner end, where the tube joins the womb (proximal) or at the outer, fimbrial end (distal). When the outer end is sealed and the tube fills with fluid it is called a hydrosalpinx — a finding that matters a great deal, as explained below.

How tubes are tested

HSG (hysterosalpingogram) is an X-ray taken while dye is injected through the cervix; if the tubes are open the dye spills into the pelvis. It is quick, needs no anaesthetic and is a good first test for women with no history of pelvic infection or surgery. Its limitation is false positives: a tube that goes into spasm during the test can look blocked when it is not, which is one reason an HSG "block" at the inner end is often open on laparoscopy.

Laparoscopy and dye test is the reference standard. Under general anaesthetic a telescope is passed through the navel, blue dye is injected through the cervix and the surgeon watches it spill from each tube — while also seeing the ovaries, the outside of the womb, and any endometriosis or adhesions that an X-ray cannot show. Mild disease can be treated at the same operation. It is the preferred test when there is any history of infection, surgery, pain or a previous ectopic pregnancy. Our articles on the laparoscopy and dye test and the step-by-step surgery guide explain what to expect.

A HyCoSy ultrasound test (dye seen on scan) is an alternative to HSG in some centres. Chlamydia antibody blood tests can hint at past infection but do not replace imaging.

What the result means

  • Both tubes open — the tubes are not the problem; attention turns to ovulation, sperm and endometriosis.
  • One tube blocked, one open — natural conception is still possible, since the open tube can pick up an egg from either ovary. Fertility is somewhat reduced; ovulation induction or IUI is reasonable for a limited time, taking age into account.
  • Both tubes blocked at the inner end — often spasm or mucus plugging rather than true disease; a laparoscopy frequently finds them open, and in selected cases the tube can be cannulated.
  • Both tubes blocked at the outer end / hydrosalpinx — true tubal disease; the choice is between tubal surgery and IVF.

Tubal surgery or IVF?

Thirty years ago tubal surgery was the only option; today IVF bypasses the tubes altogether, and the decision is about which gives the better chance for a particular woman. Surgery makes sense when the damage is mild — thin adhesions around a tube, a healthy tube wall, a small hydrosalpinx with intact lining — in a younger woman with time on her side, because it offers the chance of conceiving naturally more than once. Reversal of sterilisation in a woman under 40 with adequate tube length is also worthwhile, with pregnancy rates of 50–70%. Laparoscopic surgery with fine instruments is the right approach for all of these.

Surgery is a poor choice when the tube is badly scarred, thick-walled or has lost its inner lining, when both tubes are extensively diseased, or when the woman's age or ovarian reserve means that each month counts. In those cases the pregnancy rate after repair is low and the risk of ectopic pregnancy is high — up to one in ten pregnancies after tubal surgery. IVF is then the better path.

Hydrosalpinx: why it should be dealt with before IVF

A fluid-filled tube does more than fail to work. The fluid leaks back into the womb and is toxic to embryos, roughly halving the chance of IVF success. Removing the affected tube (salpingectomy) or clipping it at the womb — done laparoscopically as a day case — restores the IVF success rate to normal. This is one of the best-established findings in fertility surgery, and a hydrosalpinx on scan or HSG should prompt that conversation before any IVF cycle. Removing a tube does not affect the ovary's hormones or egg supply.

Can blocked tubes be opened with medicines?

No. Antibiotics treat an active infection but cannot undo scarring, and there is no tablet, herbal preparation, massage or "flushing" that reopens a diseased tube. The one honest exception is that a dye test itself — particularly HSG with oil-based contrast — modestly increases natural pregnancy rates in the months afterwards, probably by clearing mucus and debris from tubes that were never truly blocked.

Prevention

Most tubal damage is preventable. Prompt treatment of pelvic infection and of sexually transmitted infections in both partners, barrier contraception when not trying to conceive, and early laparoscopic (rather than open) surgery for cysts and endometriosis all protect the tubes.

The bottom line

  • Tubal damage is a leading cause of infertility and usually silent; infection is the commonest reason.
  • HSG is a good first test; laparoscopy and dye is the definitive one and can treat mild disease at the same time.
  • One open tube is still a fertile tube; two blocked tubes at the inner end are often not truly blocked.
  • Mild damage in a younger woman — laparoscopic repair; severe damage, or when time is short — IVF.
  • A hydrosalpinx should be removed or clipped before IVF; it halves success if left.
  • No medicine reopens a scarred tube.

If you have been told your tubes are blocked and want a clear plan, bring your reports — you can consult us at Sugabi Clinic Ragama or book a video consultation.

References

  1. National Institute for Health and Care Excellence. Fertility problems: assessment and treatment (CG156) [Internet]. London: NICE; 2013 [updated 2017 Sep 6; cited 2026 Oct 5]. Available from: nice.org.uk/guidance/cg156
  2. NHS. Infertility — causes [Internet]. London: NHS; [cited 2026 Oct 5]. Available from: nhs.uk
  3. Human Fertilisation and Embryology Authority. Fertility treatment options — surgery [Internet]. London: HFEA; [cited 2026 Oct 5]. Available from: hfea.gov.uk
  4. Johnson N, van Voorst S, Sowter MC, Strandell A, Mol BWJ. Surgical treatment for tubal disease in women due to undergo in vitro fertilisation. Cochrane Database Syst Rev. 2010;(1):CD002125. doi:10.1002/14651858.CD002125.pub3
  5. Practice Committee of the American Society for Reproductive Medicine. Role of tubal surgery in the era of assisted reproductive technology: a committee opinion. Fertil Steril. 2021;115(5):1143–50. doi:10.1016/j.fertnstert.2021.01.051
  6. Dreyer K, van Rijswijk J, Mijatovic V, Goddijn M, Verhoeve HR, van Rooij IAJ, et al. Oil-based or water-based contrast for hysterosalpingography in infertile women. N Engl J Med. 2017;376(21):2043–52. doi:10.1056/NEJMoa1612337
  7. Maheux-Lacroix S, Boutin A, Moore L, Bergeron ME, Bujold E, Laberge P, et al. Hysterosalpingosonography for diagnosing tubal occlusion in subfertile women: a systematic review with meta-analysis. Hum Reprod. 2014;29(5):953–63. doi:10.1093/humrep/deu024
  8. Ambildhuke K, Pajai S, Chimegave A, Mundhada R, Kabra P. A review of tubal factors affecting fertility and its management. Cureus. 2022;14(11):e30990. doi:10.7759/cureus.30990