Chances of Becoming Pregnant
There is approximately a 1.4% chance of becoming pregnant after a tubal ligation. The rate is a bit higher if the tubal ligation is done at the same time as a C-section and increases to 1.85% after 10 years because in some cases, the tubes repair themselves.
Here is more information from Wiki s contributors:
- A recent study (the Collaborative Review of Sterilization, or CREST, study) looked at 10,000 women who had undergone tubal ligation and found 143 failures (a failure rate of 1.4 percent). It can be higher when a tubal is done at the time of a C-section. The failure rate also tends to increase the longer it has been since one had a tubal ligation. The U.S. Collaborative Review of Sterilization (CREST) found the failure rate for tubal ligation (all occlusion methods) to be 1.85% after 10 years.
- Tubal ligation prevents contact between the egg and the sperm. There are several different procedures that can be done. One is called the Pomeroy. It involves a loop made in the fallopian tube that is cut out. The tie is made of a material that the body can absorb and when this happens, the two ends of the tube fall apart. It is possible that they re-attach, or the egg or sperm can cross the gap, resulting in pregnancy.
- The failure rate for tubal ligation is about 1.4 percent overall. So, while the chances of getting pregnant are very low, they aren't zero percent. Women who have had a tubal ligation and subsequently get pregnant are at increased risk for an ectopic pregnancy.