Diaphragms

Diaphragms are made of soft silicone. It is placed inside the vagina to cover the cervix, and stop sperm from getting through.

Things to consider

• It is a good idea to see a doctor or nurse to be taught how to insert a diaphragm correctly and to make sure it fits properly.
• It is usually easy to put in once you’ve been taught and have practised.
• One size fits most. When you know what size you need, you can buy one over the counter at a pharmacy or health service.
• It can last 1-2 years.
• You can insert a diaphragm up to 24 hours before sex begins.
• You must leave it in for at least 6 hours afterwards, and remove it within 24 hours.
• You need to remove the diaphragm after sex for cleaning.
• You only have to use a diaphragm when you have sex – it doesn’t affect your body at other times.
• Diaphragms are quite effective in preventing unintended pregnancy if fitted properly and used every time you have sex.
• A person needs to be comfortable with touching their body to use a diaphragm.
• You have to keep your diaphragms clean and dry when not in use, and regularly check that it has not broken down.
• Do not use oil-based lubricants as these can cause the diaphragm to break down.
• You should re-check the size after pregnancy, a vaginal operation, a major weight change (gaining or losing over 5kg), or if you feel the fit has changed and the diaphragm feels loose or uncomfortable.
• Does not protect against STIs.

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This publication is provided for education and information purposes only. It is not a substitute for professional medical care. Information about a therapy, service, product or treatment does not imply endorsement and is not intended to replace advice from your healthcare professional. Readers should note that over time currency and completeness of the information may change. All users should seek advice from a qualified healthcare professional for a diagnosis and answers to their medical questions.