HEALTH & DISEASE A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site sigmoidoscopy Examination of the rectum and the sigmoid colon (last parts of the large intestine with a viewing insrument called a sigmoidoscope or proctosigmoidoscope. Sigmoidoscopy is a form of endoscopy. Why it's performed Sigmoidoscopy is performed to investigate symptoms relating to the lower gastrointestinal tract, such as bleeding from the rectum or lower colon, and to look for evidence of disorders such as polyps (small benign growths), ulcerative colitis, or colon and rectal cancer. Attachments at the end of the sigmoidoscope allow a biopsy (removal of a small sample of tissue for analysis) to be carried out if necessary. How it's done Sigmoidoscopy is sometimes performed as a follow-up to a rectal examination, in which the doctor exams the rectum with a gloved finger. Sigmoidoscopy may also be preceded by proctoscopy (an examination of the anal canal and rectum with a viewing instrument. Related category    • HEALTH AND DISEASE Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP