Explain the causes and pathophysiology of lower GI bleeding

Lower gastrointestinal (GI) bleeding refers to bleeding that occurs in the lower part of the digestive tract, including the small intestine, large intestine, rectum, and anus. The causes and pathophysiology of lower GI bleeding can be varied and complex. Here’s an overview:

Causes of Lower GI Bleeding:

1. Hemorrhoids: Swollen veins in the rectum or anus that can bleed during bowel movements. Typically causes bright red blood on _____ ________ ____ _________ ________ _________ _________ ____ ___.
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