Millions of teenagers are infected with STDs, but many have no symptoms and do not know that they are infected. Latex condoms work by keeping blood, semen, and vaginal fluids from passing from one person to another. Although they cannot completely eliminate the risk of STDs, when used properly during every instance of sexual contact, they can work very well. All sexually active people who have had more than one sexual partner or whose partner has had more than one partner should use condoms all of the time.
Pregnancy is a different matter.
With perfect use, this number drops to two out of 100. The material the condom is made of is more important than the specific brand of condom. In addition, the condoms should be labeled for protection against STDs, and the expiration date should not have passed. Condoms must be properly used in order to work. They should be used with every act of vaginal, oral, or anal sex.