Cancer Research UK logo.
SearchDonate
  • Search
Image of a contraceptive pill packet on a blue background.

Causes of cancer

Hormones and cancer

Our natural hormone levels change across our lifetime. Read how the pill and hormone replacement therapy can affect these levels and cancer risk. Your doctor can help you decide what’s right for you.

Two women talking.

Does hormone replacement therapy (HRT) increase cancer risk?

HRT can increase the risk of some cancers, but for most people, the benefits of taking HRT outweigh the risks. If you are thinking of starting or stopping HRT speak to your doctor.

Blister of contraceptive pills.

Does the contraceptive pill increase cancer risk?

The pill increases the risk of some cancers and decreases the risk of others. Remember, there are other things that can affect your risk of cancer more than the pill. Speak to your doctor about what is right for you.

Patient Information Forum. Trusted Information Creator.
Plain English Campaign award.
An icon of a landline phone.

Nurse helpline

Questions about cancer? Call freephone 0808 800 40 40 from 9 to 5 - Monday to Friday. Alternatively, you can email us.

Talk