How effective are condoms at preventing pregnancy? - Bedsider
External male and internal female condoms are barrier methods of contraception. They stop sperm meeting an egg. There are also external novelty condoms available. These condoms may not protect you from pregnancy and don't help protect you from sexually transmitted infections so the information below doesn't apply to them.
Condoms are the only contraceptive method that protect against sexually transmitted infections STIs. The male condom is a sheath or covering that is worn over the penis during sex. They are designed to stop a man's semen from coming into contact with his sexual partner.
A male condom is a thin film cover that is placed over the penis. Condoms made from latex rubber are the most common type. For people who get skin irritation from latex, polyurethane condoms are a good choice. Condoms are either lubricated or non-lubricated.