By Dr Alimileti Jhansi Rani, Fertility Specialist, Birla Fertility & IVF, Hyderabad
An ectopic pregnancy can affect future fertility when it damages a fallopian tube or requires the tube to be removed. What happens next depends largely on the health of the remaining tube, the woman’s age, ovarian reserve, ovulation and the reason the ectopic pregnancy occurred.
In many women, one healthy fallopian tube can still support natural conception. The ovaries continue to release eggs, and the remaining tube can provide the pathway for sperm and egg to meet. The focus after an ectopic pregnancy is therefore on understanding how well the rest of the reproductive system is functioning.
What changes after one fallopian tube is removed?
An ectopic pregnancy occurs when a fertilised egg implants outside the uterus, most commonly within a fallopian tube. When the affected tube is severely damaged or ruptured, it may need to be removed through a procedure called salpingectomy.
Removal of one tube does not affect the ovaries themselves. Ovulation can continue, and the remaining tube can provide a pathway for the egg and sperm to meet.
What determines the chances of conceiving naturally?
Several factors need to be considered together:
- Health of the remaining tube: Previous infection, adhesions, endometriosis or tubal damage can influence its function.
- Age and ovarian reserve: These help determine the number of available eggs and overall reproductive potential.
- Ovulation: Regular release of an egg remains an important part of natural conception.
- Male fertility: Sperm count, movement and morphology should also be considered when pregnancy is delayed.
- Cause of the previous ectopic pregnancy: The condition that affected one tube may, in some women, also involve the other.
This is why two women with a history of ectopic pregnancy can have very different fertility prospects even when both have only one remaining tube.
Does having one ectopic pregnancy increase the risk of another?
Yes, a previous ectopic pregnancy is itself a risk factor for another ectopic pregnancy, particularly when there is underlying damage to the remaining fallopian tube.
That does not mean a subsequent pregnancy will be ectopic. It does mean that a positive pregnancy test after an ectopic pregnancy should be followed up early.
Once pregnancy is confirmed, early medical assessment can help establish where the pregnancy is developing. Depending on the situation, doctors may use serial blood tests and an early ultrasound to monitor the pregnancy and confirm that it is in the uterus.
When should you consider a fertility evaluation?
There is no need to assume that losing one tube means you should immediately move to IVF.
If the remaining tube appears healthy and there are no other concerns, couples may be able to try naturally. But if pregnancy does not occur after a reasonable period of trying, or if there is already a history of pelvic disease, tubal problems, irregular ovulation or male-factor concerns, then an earlier fertility evaluation may make sense.
A fertility specialist can look at the whole picture rather than just the missing tube. That may include ovarian reserve, ovulation, the remaining tube, semen parameters and the medical history surrounding the ectopic pregnancy.
What if the remaining tube isn’t healthy?
This is where treatment may need to change. If the remaining tube is blocked or significantly damaged, IUI may not be useful in the same way as it would be when at least one healthy tube is available, because IUI still relies on the sperm reaching an egg through a fallopian tube.
IVF works differently. The egg and sperm are brought together outside the body, and the resulting embryo is transferred directly into the uterus. This means the fallopian tubes are not required for the fertilisation process.
The decision between trying naturally, considering IUI or moving towards IVF depends on the individual situation, not simply on whether one tube has been removed.
Losing one tube is not the same as losing your fertility
It is understandable to look at the loss of a fallopian tube and immediately think that your chances of becoming pregnant have been cut in half. But fertility is more complicated than a numbers game.
For some women, one healthy remaining tube is enough for natural conception. For others, the underlying reason for the ectopic pregnancy or problems with the remaining tube may make conception more difficult.
The important thing is to find out what your reproductive health looks like now, rather than assuming what losing one tube means for you. If you do become pregnant again, early monitoring is particularly important because of the increased risk of another ectopic pregnancy. And if conception is taking longer than expected, a fertility evaluation can help identify whether the remaining tube, or something else, is actually standing in the way.
