Hemorrhoids Anatomy Diagram - Understanding Internal and External Piles #3870592 (License: Personal Use)

This anatomical illustration depicts the rectal and anal region, focusing on swollen vascular structures known as hemorrhoids. The pink tubular structure represents the anal canal, with visible internal hemorrhoidal plexus (above the dentate line) and external hemorrhoids (below), surrounded by yellow adipose tissue and a prominent dark vessel indicating venous dilation. The wavy line at the lower portion marks the dentate line, a key anatomical landmark distinguishing internal from external hemorrhoids.

Used in gastroenterology, proctology, or patient education web pages to explain hemorrhoid types, symptoms, and treatment options; matches user intent for understanding causes, diagnosis, or surgical interventions.