Overview

perianal haematoma


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(external haemorrhoid) a small painful swelling beside the anus, occurring after a bout of straining to pass faeces or coughing. Perianal haematomas are caused by the rupture of a small vein in the anus. They often heal spontaneously but occasionally rupture. Rarely this is followed by abscess formation. If severe pain continues, surgical removal can be undertaken. See also haemorrhoids.

Subjects: Medicine and Health.


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