The anus is the final component of the digestive system’s lower gastrointestinal tract. Offering an opening for the feces to be voided from the body’s rectum, it is surrounded by strong muscles that prevent an involuntary discharge of waste. Even though defecation is the activity most commonly associated with the anus, it is rarely thought of as belonging to the lower GI tract and thus being an entity onto itself.

As a matter of fact, there a plethora of digestive system disorders of the anus that may range from the benign to the life threatening: