Diaphragm/cap with spermicide

How effective is it?

Diaphragms and caps are 92-96 per cent effective when used with spermicide.  Between four and eight women in 100 will get pregnant in a year.

How does it work?

A flexible latex or silicone device, used with spermicide.  It is put into the vagina to cover the cervix. This stops sperm from entering the uterus and meeting an egg.

What are the advantages?

  • Can be put in any time before sex.
  • You only have to use it when you have sex.
  • No serious health risks.

What are the disadvantages?

  • Extra spermicide is needed if you have sex again.
  • Some people can be sensitive to spermicide.
  • It can take time to learn how to use correctly.

Anything else I should know?

  • You need to use the correct size.
  • You may need a different size if you gain or lose more than 3kg (7lbs), have a baby, miscarriage or abortion.
  • Needs to be left in for 6 hours after sex.