Priapism is an unwanted, persistent erection. It may occur spontaneously or from certain antidepressants or erectile dysfunction drugs.


Symptoms include an erection lasting more than four hours or off and on for several hours. The penis is usually painful or tender.


Prompt treatment is needed. Options include draining blood from the penis (aspiration) and medication to restrict blood flow to the penis.

Last Updated Jun 13, 2017

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