A contraceptive diaphragm or cap is a barrier method of contraception. It is usually a circular dome made of plastic although they come in different shapes, sizes and materials. It is inserted into the vagina before sex and you need to use it with a gel that kills sperm called spermicide. It's a bit tricky to get the hang of, but some women love it.

What is in the Cap or diaphragm?

A contraceptive diaphragm or cap is a circular dome made of thin
soft silicone
although they come in different shapes
sizes and materials. You need to use it with a gel that kills sperm called spermicide. The most common active ingredient of spermicides is nonoxynol-9.

Alternative to Cap or diaphragm


Frequency

During or before sex

Effectiveness

83% - 84%

Blood clot risk

None

Effect on fertility

None

FAQs

How do I insert a diaphragm?


Are there different contraceptive diaphragm sizes?


Are diaphragms reusable?


Do I need spermicide gel for my diaphragm?


Where can I buy a contraceptive diaphragm?


Detailed information

How Cap or diaphragm works:


How to use Cap or diaphragm:


How safe is Cap or diaphragm: