What are the causes of abnormal penis erection?

Generally speaking, when a man is sexually stimulated, his penis will erect. However, many men have non-stimulating penis erections, or the penis remains erect after ejaculation. Men of any age may have this disease. Therefore, people are very concerned about the causes of abnormal penis erections. So, what are the causes of abnormal penis erections? Let's take a closer look.

The causes of priapism can be divided into high-flow priapism (also known as non-ischemic, arterial priapism) and low-flow priapism (also known as ischemic, venous priapism). Low-flow priapism is more common and is often accompanied by reduced venous return and venous blood retention, causing hypoxemia and acidosis of erectile tissue.

1. Sickle cell anemia

Patients with sickle cell anemia often experience abnormal penile erections, which are mainly due to the obstruction of penile venous reflux caused by sickle cell red blood cells.

2. Intracavernous injection

It has become the most common cause of abnormal penile erection today. It is mainly due to the inability of the smooth muscle to restore its contraction ability in patients with drug overdose or oversensitivity to drugs, leading to abnormal erection.

3. Neurological factors

Patients with spinal stenosis, spinal cord injury, and intervertebral disc herniation are prone to abnormal penile erection. However, such patients are often self-limited and do not require medical treatment.

4. Malignant tumor

Although tumor cell infiltration does not cause abnormal erections, venous obstruction or invasion of the cavernous sinuses can cause stasis and thrombosis. Tumors that have been reported to metastasize to the penis and cause abnormal erections include leukemia, prostate cancer, kidney cancer, and melanoma.

5. Drug factors

Common drugs that cause abnormal penile erections include antidepressants, tranquilizers and antihypertensive drugs. Antihypertensive drugs are related to abnormal erections, such as hydralazine, guanethidine, phenothiazines, especially chlorpromazine, and antidepressants such as trazodone.

6. Total parenteral nutrition

Total parenteral nutrition may cause priapism, especially when 20% fat emulsion is given intravenously. This type of priapism is of the low-flow type, similar to that seen in patients with sickle cell disease.

7. Trauma

Trauma to the perineum or genitals can cause thrombosis or severe bleeding and tissue edema at the base of the penis, which can block the venous return of the penis and cause abnormal erection (low-flow type).

The above is an introduction to the causes of abnormal penile erection. I hope it will help everyone understand it. There are many reasons for abnormal penile erection. When similar situations occur in yourself, it is best to pay enough attention and actively look for the cause. Only when you know the type of disease you have can you take better measures for treatment.