priapism

Persistent, usually painful erection of the penis, especially as a consequence of disease and not related to sexual arousal.

Morbidly persistent erection and rigidity of the penis.

More or less permanent erection and rigidity of the penis, with or without sexual desire.

A painful and potentially harmful medical condition in which the erect penis (erection) does not return to its flaccid state (despite the absence of both physical and psychological stimulation), often as a result of a spinal injury.

Condition in which the penis is continually erect; usually painful and seldom with sexual arousal.