Diaphragm and cervical cap A diaphragm or cap is a barrier method of contraception. It fits inside your vagina and prevents sperm passing through the cervix (the entrance of your womb). You need to use it with a gel that kills sperm (spermicide). You only have to use a diaphragm or cap when you have sex, but you must leave it in for at least 6 hours after the last time you had sex. You can leave it in for longer than this, but do not take it out before. You need to apply more spermicide if, you have sex again with the diaphragm or cap in place and the diaphragm or cap has been in place for 3 hours or more before you have sex.

When you first start using a diaphragm or cap, a doctor or nurse will examine you and advise on the correct size. A diaphragm or cap does not provide reliable protection against sexually transmitted infections (STIs). If you’re at a high risk of getting an STI – for example, you or your partner has more than one sexual partner – you may be advised to use another form of contraception. You should not use a diaphragm or cap during your period as there is a possible link with toxic shock syndrome (TSS), a rare condition that can be life threatening. APA

To insert a diaphragm or cap, your doctor or nurse will show you how to put in a diaphragm or cap. You may want to squat while putting the diaphragm or cap in; others lie down or stand with one foot up on a chair – use the position that’s easiest for you. After using, you can wash your diaphragm or cap with warm water and mild unperfumed soap. Rinse it thoroughly, then leave it to dry and put it in its container. Keep it in a cool, dry place.