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Do condoms always prevent HIV transmission?

Used correctly, condoms are the best way to prevent sexually transmitted infections (STIs) such as HIV during sex (including anal and oral).

When used correctly, condoms are the best way to prevent sexually transmitted infections (STIs) such as HIV. They have a very low failure rate and are effective for all forms of sex, including oral and anal sex. 

Condoms are classed as medical devices and therefore must meet essential requirements and go through quality tests.

Always check the expiry date of the condom and choose condoms that carry the European CE mark, which is a recognised safety standard. Do not use novelty condoms, as they are NOT safe.

Condoms are most effective when used properly and this includes using one that is the right size. Condoms come in different widths and lengths, so it may take a while to find the right condom.

Here are some basic things you can do to make sure you’re using a condom properly: 

  • Use a new condom each time you have sex.
  • Put on the condom as soon as erection occurs and before any sexual contact (vaginal, anal or oral).
  • Avoid using an oil-based lubricant, such as Vaseline or baby oil. This can weaken the condom and increase the chances of it splitting. Water-based lubricants are best and can be bought at most supermarkets or pharmacists.
  • The man should withdraw from the partner immediately after ejaculating, holding the condom firmly to keep it from slipping off.

Female condom

The female condom is a thin plastic pouch that has flexible rings at either end. The condom is inserted into the vagina before sex to prevent pregnancy and STIs. Read more information about the female condom.

Further information:

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  • Telephone 01407 762713
Bodedern Surgery - Brór Ysgol, Bodedern, Anglesey, LL65 3UR
  • Telephone 01407 740242
Valley Surgery - London Road, Valley, Anglesey , LL65 3DP
  • Telephone 01407 740706
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