Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments with related expertise Colon and Rectal Surgery Gastroenterology and Hepatology Doctors who perform this procedure Edit search filters close Narrow your search By location Rochester, MN By last name There are no doctors whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D There are no doctors whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G There are no doctors whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I There are no doctors whose last name begins with the letter J J Find a doctor whose last name begins with the letter K K Find a doctor whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N Find a doctor whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q There are no doctors whose last name begins with the letter R R There are no doctors whose last name begins with the letter S S There are no doctors whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U There are no doctors whose last name begins with the letter V V active Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-1 out of 1 doctors available Last Name Initial: W Iris Wang, M.D. Gastroenterologist Rochester, MN Areas of focus: Colonoscopy, Flexible sigmoidoscopy, Endoscopic procedure, Constipation, Gastrointestinal disorder, Gastroesophageal re...flux disease, Pelvic floor dysfunction, Functional bowel disorder, Pelvic floor defecatory dysfunction Show more areas of focus for Iris Wang, M.D. By Mayo Clinic Staff Request an appointment About March 05, 2022 Print Show references Falchuk M. Patient information: Flexible sigmoidoscopy (beyond the basics). https://www.uptodate.com/contents/search. Accessed Sept. 12, 2018. Flexible sigmoidoscopy. National Institute of Diabetes and Digestive and Kidney Diseases. https://digestive.niddk.nih.gov/ddiseases/pubs/sigmoidoscopy/index.htm. Accessed Sept. 12, 2018. U.S. Preventive Services Task Force. Screening for colorectal cancer: U.S. Preventive Services Task Force recommendation statement. JAMA. 2016; doi:10.7326/0003-4819-149-9-200811040-00243. A-Rahim YI, et al. Bowel preparation for colonoscopy and flexible sigmoidoscopy. https://www.uptodate.com/contents/search. Accessed Sept. 12, 2018. AskMayoExpert. Colorectal cancer screening (adult). Mayo Clinic; 2019. Qaseem A, et al. Screening for colorectal cancer in asymptomatic average-risk adults: A guidance statement from the American College of Physicians. Annals of Internal Medicine. 2019; doi:10.7326/M19-0642. Related Anal fissure C. difficile infection Clear liquid diet Colon polyps Constipation Crohn's disease Fecal incontinence Hemorrhoids Inflammatory bowel disease (IBD) Irritable bowel syndrome Proctitis Pseudomembranous colitis Rectal cancer Sigmoidoscopy exam Solitary rectal ulcer syndrome Ulcerative colitis Show more related content News from Mayo Clinic Can colorectal cancer be prevented? Dec. 07, 2022, 07:47 p.m. CDT Products & Services A Book: Mayo Clinic on Digestive Health Sign up for Email: Get Your Free Resource – Coping with Cancer Show more products and services from Mayo Clinic Mayo Clinic in Rochester, Minnesota, has been recognized as the best Gastroenterology & GI Surgery hospital in the nation for 2023-2024 by U.S. News & World Report. Learn more about this top honor Flexible sigmoidoscopyAboutDoctors&Departments PRC-20394174 Patient Care & Health Information Tests & Procedures Flexible sigmoidoscopy