What is percentage of withdrawal method?

The withdrawal method, also known as coitus interruptus, involves a male partner withdrawing before ejaculation to prevent sperm from entering the vagina. When used perfectly, its effectiveness is around 96%, meaning about 4 out of 100 couples will experience an unintended pregnancy within a year of consistent use. However, typical use, which accounts for human error and inconsistency, results in an effectiveness rate of about 78%. This method does not protect against sexually transmitted infections (STIs).