The connection between the fallopian tube and ovarian cancer risk

Medical Mythbusting Commentary for September 28, 2026

Source:
Many ovarian cancers may actually start somewhere else—and removing this body part can dramatically lower risk

Reference:

  • Ovarian cancer is one of the deadliest cancers in women, largely because it is usually found late, after it has already spread.
  • Scientists have learned something surprising: most of the deadliest type of “ovarian” cancer does not actually start in the ovaries. It starts in the fallopian tubes — the two thin tubes that carry eggs from the ovaries to the uterus.
  • This has led to a simple prevention strategy: if a woman is done having children, removing the fallopian tubes may lower her chance of ever getting this cancer, while leaving the ovaries in place so they keep making hormones.

Why the fallopian tubes are the target

  • The most common and lethal form of ovarian cancer is called high-grade serous cancer.
  • Research now shows these cancers most often begin in the far end of the fallopian tube, then shed cells onto the ovary and spread from there.
  • In other words, the ovary is often where the cancer lands and grows — not where it begins.
  • Removing the tubes takes away the original launch site for the majority of these cancers. (It does not prevent every kind of ovarian cancer — a small minority start elsewhere.)

What “opportunistic salpingectomy” means

  • “Salpingectomy” simply means surgically removing the fallopian tubes.
  • “Opportunistic” means doing it during a surgery a woman is already having for another reason — for example, a hysterectomy, or even gallbladder or hernia surgery.
  • The idea is to take advantage of an operation that is already planned, rather than doing a separate surgery.
  • It is also now the preferred method of permanent birth control (“getting your tubes tied”), because fully removing the tubes has the bonus of lowering cancer risk compared with just clipping or tying them.

What the evidence shows

  • Studies so far are very encouraging, though they are based on tracking large groups of women over time rather than a single definitive trial.
  • Pooled research suggests removing the tubes cuts the risk of ovarian cancer by roughly half or more.
  • One large Canadian study found zero cases of the serous type of ovarian cancer in women who had their tubes removed, when several cases would normally have been expected.
  • More recent large population studies from 2026 continue to show substantially lower rates of ovarian cancer in women who had the procedure.
  • A few studies show smaller or less certain benefits, mainly because it takes many years for these cancers to appear, so the longest-term data are still being collected.

Is it safe?

  • Adding tube removal to a surgery that is already happening appears to be safe.
  • It typically adds only about 10 to 15 minutes to the operation.
  • It has not been linked to more bleeding, infections, or hospital readmissions.
  • Because the ovaries are left in place, hormone levels and the timing of menopause do not appear to be affected — though long-term hormone data are still limited.
  • Important: the procedure causes permanent infertility, so it is only for women who are certain they do not want to become pregnant.

Who this is recommended for

  • Women having a hysterectomy (with ovaries staying in) — removing the tubes is now routinely recommended.
  • Women who want permanent birth control — removing the tubes is preferred over tying them.
  • Women already having other pelvic surgery and who are finished having children — it is offered.
  • It is generally not done during emergency surgery, because there isn’t time to properly discuss it and get consent first.

A special note on high-risk women (BRCA gene carriers)

  • Some women inherit gene changes (such as BRCA1 or BRCA2) that greatly raise their risk of ovarian cancer.
  • For these women, the standard recommendation is different and stronger: removing both the tubes and the ovaries at a specific age, because this is the most effective protection currently proven.
  • Removing only the tubes may be considered as a temporary, bridging step for some younger high-risk women not yet ready to lose their ovaries — but for them it is not a substitute for eventually removing the ovaries.

The bottom line for a general audience

  • The fallopian tubes, not the ovaries, are now understood to be the starting point of most deadly ovarian cancers.
  • Removing the tubes during a surgery a woman is already having is a safe, low-cost opportunity that appears to meaningfully lower cancer risk.
  • It is a decision to make ahead of time, with a doctor, because it results in permanent loss of fertility.