Priapism is a long-lasting, usually painful erection of the penis that lasts for several hours or much longer. It is a rare condition.
Priapism is not necessarily related to sexual stimulation or desire, and does not subside after orgasm.
It occurs because the blood in the penis is trapped and unable to return to the circulation.
If priapism is not treated, it can lead to scarring and a permanent inability to get an erection (impotence).
Who is affected?
Priapism can occur in males of all ages, including newborn babies. It can result from a condition, such as sickle cell disease, from an injury or from certain drugs. Go to the Causes page for more information.
Types of priapism
There are two types of priapism:
- Priapism associated with high blood flow. This occurs after injury to the penis, when the cavernosal artery (vessel leading to the penis) ruptures.
- Priapism associated with low blood flow. This occurs when the vein running from the penis is blocked, and results in a higher risk of damage to the tissues.
The erection can occur as repeated short episodes (known as stuttering priapism), which can last from a few minutes to several hours. Or it can last for six hours or more (known as fulminant priapism).
