The female condom
The female (internal) condom is a thin plastic and loose-fitting sheath that is places into and around the entrance of the vagina. Condoms are the only contraceptive method which protect against sexually transmitted infections (STIs).
The condom works by acting as a barrier to stop sperm from travelling through the vagina to the uterus (womb) during sex, and preventing the sperm and egg from meeting. It only needs to be used when having sex.