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Diaphragm & Caps


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Photograph of Diaphragm

What is it? 

Diaphragm (sometimes called a cap) is a circular dome made of thin, soft latex (rubber) or silicone. It's inserted into the vagina before sex. 

A Diaphragm is easier to use than a cervical cap. A cervical cap is similar to a diaphragm but smaller and inserted into the vagina to fit over the cervix.

How does it work? 

Diaphragm/cap is inserted into the vagina before sex, and it covers the cervix so that sperm cannot get into the womb. You need to use spermicide with it (spermicides kill sperm).

The diaphragm/cap must be left in place for at least six hours after sex. After that time, you take out the diaphragm/ cap and wash it, they're reusable. 

Diaphragm/caps come in different sizes. You must be fitted for the correct size by a trained doctor or nurse.

How effective are they?

If used correctly with spermicide, caps are 92-96% effective. This means that between four and eight women out of every 100 who use a diaphragm/cap as contraception will become pregnant in a year.

Added benefits?

      Purple petal    There are no serious health risks, and you only have to think about it when you have sex.    
      Purple petal    You can put them in 3 hours before you have sex.    

What else should I know?

      Purple petal    It can take time to learn how to use them.    
      Purple petal    If you lose or gain more than 3kg (7lbs) in weight, or have a baby, you may need to be fitted with a new diaphragm/cap.    

By using condoms as well as diaphragm/cap, you'll help to protect yourself against sexually transmitted infections (STIs). 

Diaphragms/caps are freely available from Contraception Clinics. Use the Service Finder to find a clinic that’s most convenient for you. Or call our Central Booking line 01772 401140 for more information on this method or to book an appointment.







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