The sigmoid colon is the last section of the bowel — the part that attaches to the rectum. It pushes feces along the bowel tract. It’s about a foot and a half long (around 40 centimeters) and is ...
Dear Dr. Gott: Please speak to the effectiveness of the sigmoidoscopy versus the colonoscopy in detecting disease. My primary care physician performs a sigmoidoscopy every year as part of my physical.