Is it Genetic?
Approximately 5 to 10% of colon cancer is hereditary. Some gene mutations passed through generations of your family can increase your risk of colon cancer significantly. Only a small percentage of colon cancers are linked to inherited genes. The most common inherited syndromes that increase colon cancer risk are familial adenomatous polyposis or FAP and Lynch syndrome, which is also known as hereditary nonpolyposis colorectal cancer, HNPCC. You’re also more likely to develop colon cancer if you have a blood relative who has had the disease. If more than one family member has colon cancer or rectal cancer, your risk is even greater.