Is anal endoscopy the same as colonoscopy?

Anoscopy and colonoscopy are different, but both can diagnose rectal and anal diseases: first, the length of the anoscope is shorter, and after exposing the anus, it can diagnose rectal and anal diseases, such as mixed hemorrhoids, anal fistula, anal polyps, nipple hypertrophy, etc.

Colonoscopy is longer, and it can expose the ileocecal, ascending colon, transverse colon, descending colon, sigmoid colon, and rectum. It is used to diagnose benign and malignant tumors in the colon. Second, the anesthesia method is different. Anoscopy does not require anesthesia, and the anus is directly observed after dilation.

Colonoscopy often requires general anesthesia to reduce the pain of the patient.