A GI speculum, also known as a gastrointestinal speculum or anoscope, is a medical instrument used in gastroenterology to examine the anus, rectum, and lower gastrointestinal (GI) tract. It is designed to provide a clear view of the anal canal and rectal mucosa for diagnostic evaluation, treatment procedures, and interventions. GI speculums come in various sizes, shapes, and designs, each suited for specific clinical applications and patient populations.