Condoms are thin, stretchy sheaths typically made of latex, polyurethane, or lambskin that are worn on the penis during sexual activity to prevent pregnancy and reduce the risk of sexually transmitted infections (STIs). Condoms act as a barrier that collects semen and prevents it from entering the vagina, anus, or mouth, thus reducing the chances of pregnancy and the transmission of STIs. They are one of the most widely used forms of contraception and are easily accessible over-the-counter at drugstores, supermarkets, and health clinics. Condoms are designed to be used once and then discarded. They should be used consistently and correctly to be effective in preventing pregnancy and STIs. Some condoms also come in different varieties, such as flavored, textured, or lubricated, to enhance pleasure during sexual activity. Using condoms is a responsible and effective way to protect oneself and one's partners during sexual encounters.