Non-ischemic priapism, high-flow priapism

Overview

Non–ischemic priapism, also known as high–flow priapism, is a medical condition characterized by inadequate circulation of blood in the arteries of the penis. Despite this, there is still some blood flow and oxygen reaching the penile tissues. This condition typically lacks pain and occurs less frequently than ischemic priapism. It can be caused by penile injury or trauma to the perineum, the area between the scrotum and the anus. The injury results in uncontrolled blood flow into the penile tissues, leading to a prolonged erection.

Symptoms

The follow signs and symptoms of non–ischemic priapism includes:

• Prolonged erection that may last for four hours. 
• Penile shaft is erected but not stiff or fully rigid.
• Typically not painful.

You may require a medical attention if your erection lasts longer than four hours. It will be determined by the healthcare provider if you have nonischemic priapism or ischemic priapism. 

Consult a health care provider if you frequently have persistent and painful erections that go away on their own. Treatment may be necessary to stop more episodes.

Causes

Injury or trauma to the penis or the perineum—the region between the base of the penis and the anus—is a frequent cause of non–ischemic priapism.

Risk factors

Priapism can occur across all age groups, including newborns, albeit extremely rarely. However, it primarily affects two distinct age demographics: children aged 5 to 10 and adults aged 20 to 50. While it is more commonly observed in males in their 30s and older, priapism can also manifest during childhood in males with sickle cell disease.