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The cervical cap is a birth control (contraceptive) device that prevents sperm from entering the uterus. The cervical cap is a reusable, deep silicone cup that is inserted into the vagina and fits tightly over the cervix. The cervical cap is held in place by suction and has a strap to help with removal. The cervical cap is effective at preventing pregnancy only when used with spermicide.

Only one cervical cap — FemCap — has Food and Drug Administration (FDA) approval in the U.S. It must be fitted and prescribed by a health care provider.

Jan. 21, 2012