Usually associated with a psychiatric disorder.

Usually affects young women with the tendency of pulling out their own hair and eating it.

Most common symptoms are abdominal pain, vomiting, gastrointestinal bleeding.

May cause anemia and hematemesis.

Can extend from the stomach into the duodenum and small intestine, and can reach the colon on rare occasions and is known as Rapunzel syndrome.

In the small intestine bezoars can fragment and dislocate and can lead to an ileus.

Options for treatment include endoscopic removal of the hair ball, open surgery or laparoscopic intervention.

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