How often does tubal ligation grow back?

Can Tubal Ligation Ever Reverse Itself?

When people choose tubal ligation as a permanent form of birth control, they usually expect it to be 100 percent effective for the rest of their lives. While it is one of the most reliable methods available, no permanent sterilization procedure carries a zero-percent failure rate. Over time, the body has a remarkable way of healing and attempting to restore its natural pathways.

Statistically speaking, the chances of pregnancy after having your tubes tied are very low, but they are not zero. Research shows that after a total of 5 years following tubal ligation, about 13 out of 1,000 women will have become pregnant. This unexpected outcome typically happens because the severed ends of the fallopian tubes manage to grow back together, or a completely new microscopic passage forms—a process known medically as recanalization.

When recanalization occurs, it opens up a pathway once again, making it possible for a sperm to successfully reach and fertilize an egg. Because this healing process can happen gradually, pregnancies related to tubal ligation can sometimes catch individuals and doctors by surprise years after the initial surgery was performed.