Opera Tool

OPERA (Online Personal Education and Risk Assessment) was an online information tool for people concerned about their inherited risk of breast and/or ovarian cancer. After a period of maintenance, Macmillan has had to make the decision to take OPERA down permanently. This is because technical issues make it very difficult to maintain safely in the future.

Macmillan continues to offer a range of information about family risk of cancer and genetic testing and counselling. If you have any questions or concerns 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. Our information is also available to download or order on be.macmillan, including our information booklet Cancer genetics – how cancer sometimes runs in families.

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.

Inherited cancers: prostate cancer

Some cases of prostate cancer are linked to certain inherited cancer genes, which can run in families. There are other risks, some of which can be reduced.

Lynch syndrome

Lynch syndrome (LS) is a condition that can run in families. It increases the risk of developing 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 a cancer 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.