Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Sigmoidoscopy
Medically reviewed by Min Clinic Staff | Updated: January 2026
Sigmoidoscopy: A procedure in which a physician inserts a viewing tube (sigmoidoscope) into the rectum for the purpose of inspecting the lower colon and rectum. If an abnormal area is detected, a biopsy can be performed.