Abstract
Hereditary colorectal cancer is a category of colorectal cancer that is mainly caused by his or her genetic or hereditary factors （mutations）. Familial adenomatous polyposis （FAP） and Lynch syndrome （Hereditary non-polyposis colorectal cancer, HNPCC） are the main syndromes in the category. This paper described a simple and essential introduction to the care of hereditary colorectal cancer. We discussed how important it is for patients with hereditary colorectal cancer to keep in touch with medical care throughout life time and over their next generations. Sometimes it is the most difficulties. We referred to the meaning of hereditary tumor counseling and self help societies.
