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Priapism is a persistent and often painful erection that lasts for several hours.
Causes of priapism
Priapism is caused by a problem with the blood supply to the penis. Certain medical conditions and medications can prevent the blood leaving the penis.
Diagnosing priapism
Priapism can usually be diagnosed by your GP examining your penis and asking you some questions about your symptoms and medical history.
Treating priapism
Treatment for priapism depends on the type of priapism you have. No treatment may be needed for high blood flow (non-ischaemic) priapism.