Family history

what are inherited cancers?

Inherited cancers are rare, only approximately 5% of cancers are inherited. 

Inherited cancers occur when you inherit a gene that increases the likelihood of developing cancer. 

If you have a significant familiy history of cancer, you can arrange to be tested to see if one of these genes is present in your family.

how do I know if I have a significant family history of cancer?

You may have a significant family history of cancer if you answer "yes" to either of the following questions:

• are there two or more close relatives on the same side of your family with cancer?
• has any relative been under 45 when diagnosed with cancer?

If you have answered "yes" to either of these questions, it may be appropriate for you to be assessed further through an organisation such as the Cancer Genetics Service for Wales.

However, you should discuss this with your GP or other healthcare professional who can decide if you should be referred.

how do I get referred to the Cancer Genetics Service for Wales? 

You can be referred into the service in one of three ways:

• by your GP
• by another healthcare professional, such as a breast care nurse or practice nurse.
• by yourself, if a member of your family has already been seen by the Cancer Genetics Service for Wales.

what happens if I am referred?

The Cancer Genetics Service for Wales will try to confirm the cancers in your family. 

Some patients will be invited to come to the clinic to see a genetic doctor or counsellor. 

Other patients will receive a letter explaining the level of risk in developing cancer. 

Some patients may be offered additional screening and/or genetic testing.

If you are worried about cancer, please call our Freephone Cancer Support Line on 0808 808 1010