A<unk>  is a sheath-shaped barrier device used during sexual intercourse to reduce the probability of pregnancy or a sexually transmitted infection (STI). There are both male and female<unk> s. With proper use—and use at every act of intercourse—women whose partners use male<unk> s experience a 2% per-year pregnancy rate. With typical use the rate of pregnancy is 18% per-year. Their use greatly decreases the risk of gonorrhea, chlamydia, trichomoniasis, hepatitis B, and HIV/AIDS. To a lesser extent, they also protect against genital herpes, human papillomavirus (HPV), and syphilis. The male<unk>  is rolled onto an erect penis before intercourse and works by forming a physical barrier which blocks semen from entering the body of a sexual partner. Male<unk> s are typically made from latex and, less commonly, from polyurethane, polyisoprene, or lamb intestine. Male<unk> s have the advantages of ease of use, easy to access, and few side effects. Men with a latex allergy should use<unk> s made from a material other than latex, such as polyurethane. Female<unk> s are typically made from polyurethane and may be used multiple times.<unk> s as a method of preventing STIs have been used since at least 1564. Rubber<unk> s became available in 1855, followed by latex<unk> s in the 1920s. It is on the World Health Organization's List of Essential Medicines. As of 2019, globally around 21% of those using birth control use the<unk> , making it the second-most common method after female sterilization (24%). Rates of<unk>  use are highest in East and Southeast Asia, Europe and North America. About six to nine billion are sold a year.
Condom
Vaginal syringe
Vaginal ring
Macy catheter
Dental dam
Word catheter
Hot water bottle
Antimonial cup