What is a flexible sigmoidoscopy?
Flexible sigmoidoscopy (also sometimes referred as flex-sig), is a routine outpatient procedure in which the inner lining of the lower large intestine, called the sigmoid colon, is examined. The procedure is commonly used to evaluate gastrointestinal symptoms, such as abdominal pain, rectal bleeding or changes in bowel habits. It is also performed to screen people over age 50 for colon and rectal cancer.
