How is a cervical cap used for contraception?

Updated: Dec 10, 2018
  • Author: Frances E Casey, MD, MPH; Chief Editor: Richard Scott Lucidi, MD, FACOG  more...
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Answer

Answer

The cervical cap is a cup-shaped latex device that fits over the base of the cervix. A groove along the inner circumference of the rim improves the seal between the inner rim of the cap and the base of the cervix. The cap must be filled one third full with spermicide prior to insertion. It is inserted as long as 8 hours before coitus and can be left in place for as long as 48 hours.

A cervical cap acts as both a mechanical barrier to sperm migration into the cervical canal and as a chemical agent with the use of spermicide.


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