How to avoid colorectal cancer if you have a genetic history

Eat a low-fat, low-meat, high-vegetable diet, exercise regularly, avoid obesity, and never smoke. Studies have found that daily calcium and 400 mg of folic acid can also reduce the risk of disease.

Expert advice:

●Genetic testing If one or more relatives have FAP (familial adenomatous polyposis) syndrome, consider consulting a geneticist and undergoing genetic testing.

●Check whether you have diabetes.

●Intestinal perspective

People should start to have colonoscopy at the age of 50. People with the following conditions should have early check-up:

1. Those with a family history. Start 10 to 20 years earlier than the age of the first patient in the family, and do it every 3 to 5 years. Susan chose to start doing fluoroscopy at the age of 30. She is currently in good health and no abnormalities have been found.

2. Family history of FAP. Endoscopy, barium meal or colonoscopy starting at age 13.