DefinitionBy Mayo Clinic staff
Priapism is a prolonged erection of the penis. The unwanted, persistent erection isn't caused by sexual stimulation or arousal, and priapism is usually painful.
Priapism is an uncommon condition that needs immediate medical attention. Prompt treatment for priapism is usually needed to prevent tissue damage that could result in the inability to get or maintain an erection (erectile dysfunction).
Priapism is most common between ages 5 and 10 in boys and ages 20 and 50 in men.
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