What is a perirectal abscess?
A person with a perirectal abscess has a collection of pus in the wall of the rectum. A perirectal abscess is caused by a bacterial infection of glands that produce mucus in the rectum. Perirectal abscesses are more common in those who have Crohn's disease or ulcerative colitis. The perianal abscess spreads from the anus, to the wall of the rectum.

What are the symptoms of a perirectal abscess?
Symptoms of a perirectal abscess include anal pain that is worse during a bowel movement. Additional symptoms may include fever, constipation, and pus that drains from the rectum.

How does the doctor treat a perirectal abscess?
Treatment for a perirectal abscess includes narcotic pain medication and surgery to drain the abscess.