Anorectal abscesses are most commonly caused by infection of the
a. anal glands. c. hemorrhoids.
b. external sphincter. d. perianal skin.
A
The most common cause of anorectal abscesses is infection of the anal glands, usually located posteriorly and situated between the internal and external sphincters. Anorectal abscess is not caused by infection of the external sphincter, nor by infection of hemorrhoids or perianal skin.
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