The condom is a protective device that protects both men and women from STDs during sexual intercourse, and it can also prevent pregnancy in women. Condoms are divided into male condoms and female condoms. Female condoms are often made of self-dissolving materials made of polyurethane plastic condoms, which allow the closed end ring to enter the cervix and be fixed and unfolded at the vulva, covering both the female vulva entrance and the base of the male penis. This effectively prevents contact STDs from occurring between men and women, and also effectively prevents male sperm from entering the cervix and causing pregnancy in women. Condoms are effective in preventing pregnancy in women and also effective in preventing the occurrence of sexually transmitted diseases.