Internal hemorrhoids develop inside the anal canal. External hemorrhoids develop near the anal opening. Both types can occur at the same time.
Current as ofNovember 7, 2018
Author: Healthwise Staff Anne C. Poinier, MD - Internal Medicine Brian O'Brien, MD, FRCPC - Internal Medicine Adam Husney, MD - Family Medicine Kenneth Bark, MD - General Surgery, Colon and Rectal Surgery
Medical Review:Anne C. Poinier, MD - Internal Medicine & Brian O'Brien, MD, FRCPC - Internal Medicine & Adam Husney, MD - Family Medicine & Kenneth Bark, MD - General Surgery, Colon and Rectal Surgery