What is female sterilisation?
Female sterilisation is a permanent and irreversible way of preventing pregnancy.
How effective is female sterilisation?
Female sterilisation by tubal ligation has a failure rate of 1 in 200. This means that 1 woman in every 200 who has the procedure may fall pregnant at any time after the operation. Additionally, when the sterilisation is performed at caesarean section it might have a higher chance of failure than sterilisation performed outside of pregnancy because of the changes to the uterus and fallopian tubes in pregnancy.