OTHER METHODS OF CONTRACEPTION
Withdrawal (coitus interruptus) is the removal of the penis from the vagina before ejaculation occurs. This is a difficult form of birth control in which even perfect timing (which is not always possible) does not give perfect results. If ejaculation occurs before the penis is withdrawn completely, or if drops of semen spurt into the opening of the vagina, pregnancy can occur. As live sperm can also be in the pre-ejaculatory fluid long before ejaculation (or even if the male doesn't ejaculate), this method is chancy at best, with a failure rate of 20 to 25 percent. This method can also be a frustrating form of birth control for both parties, who may find that it seriously interrupts the spontaneity of the sexual interaction. However, it is clearly better than not using any contraceptive when nothing else is available.
Douching, using a liquid to flush the vagina, is a poor method of contraception, since sperm can quickly penetrate the cervical mucus, where they are unaffected by douching. The failure rate is more than 42 percent.
Men's Health Erectyle Dysfunction