Opera Tool

OPERA is an online information tool for people concerned about their inherited risk of breast and/or ovarian cancer. It is currently unavailable while we do some maintenance work on it.

In the meantime, we have information on family risk of cancer and genetic testing and counselling. If you have any questions about cancer risk and genetics, you can contact the Macmillan Support Line on 0808 808 00 00 and speak to one of our cancer support specialists.

If you’re worried about developing cancer because of your family history, speak to your GP. They can talk to you about risk and refer you for genetic testing and counselling, if necessary.

Back to Genetic conditions and inherited cancers

Inherited cancers

If a cancer occurs more often in a family than in the general population, some people in the family may have inherited a cancer susceptibility gene.

Lynch syndrome

Lynch syndrome (LS) is a condition that can run in families. It increases the risk of bowel, womb and some other cancers.

Genetic counselling

A genetic consultation is a discussion with a person trained in genetics. They will advise you on your risk of developing cancer.

Genetic testing

You will only be offered genetic testing if your family history suggests you may have inherited an identified faulty gene.

Having a high risk of cancer

Knowing you have an increased risk of cancer can be difficult. There are options for managing the risk and getting support.