Definition
A prolonged erection unrelated to desire; the ischemic form threatens penile tissue.
Symptoms
Persistent erection, often painful and very rigid in ischemic cases.
How it may be discovered
Spontaneous onset, medication exposure or a blood disorder.
When to seek care
An erection reaching four hours requires emergency care. Seek help earlier with severe pain or sickle-cell disease; sex is not a treatment.
Investigations and tests
Examination, medication and disease history, cavernosal blood gas and selected Doppler.
Reaching a diagnosis
Ischemic and nonischemic forms must be distinguished promptly.
Treatment options
Immediate hospital treatment of ischemia with drainage and monitored local medication; surgery if needed.
Explore this topic further
Continue with related explanations of how the body works and treatment options.