There are 4 basic tests for colon cancer: a stool test (to check for blood; sigmoidoscopy (inspection of the lower colon; colonoscopy (inspection of the entire colon; and double contrast barium enema. All 4 are effective in catching cancers in the early stages, when treatment is most beneficial.
Update Date:
April 20, 2008
Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.