Hemorrhoids Explained: Types, Symptoms, and Visual Guide #3438768 (License: Personal Use)

The image depicts a cross-sectional view of the anal canal, identifying two primary types of hemorrhoids: internal (above the dentate line, covered by mucosa) and external (below the dentate line, covered by skin). A ruptured external hemorrhoid is shown actively bleeding, demonstrating one common clinical presentation. Vascular cushions and surrounding tissue are color-coded for clarity.

Used on gastroenterology or primary care web pages explaining hemorrhoidal disease; supports patient education content, symptom checkers, and diagnostic guides. Matches user intent for visual understanding of rectal bleeding causes.