Familial adenomatous polyposis (FAP) is an inherited condition that causes colon and rectal cancers.
Familial adenomatous polyposis (FAP) is a hereditary (passed down in families) syndrome that causes cancers of the colon and rectum. People with FAP can begin to develop benign (noncancerous) polyps as early as their teenage years. Unless the colon is removed, these polyps will turn malignant (cancerous) over time.
Passed down in families, FAP is a congenital (present at birth) condition caused by a gene mutation.