Curvature of the penis is an abnormal bend in the penis that occurs during erection. It is also called Peyronie's disease.
In Peyronie's disease, fibrous scar tissue develops in the deep tissues of the penis. The cause of this fibrous tissue is often not known. It can occur spontaneously.
Fracture of the penis (injury during intercourse) can lead to this condition. Men are at higher risk of developing curvature of the penis after surgery or radiation treatment for prostate cancer.
Peyronie's disease is uncommon. It affects men ages 40 to 60 and older.
Curvature of the penis can occur along with Dupuytren's contracture. This is a cord-like thickening across the palm of one or both hands. It is a fairly common disorder in white men over age 50. However, only a very small number of people with Dupuytren's contracture develop curvature of the penis.
Other risk factors have not been found. However, people with this condition have a certain type of immune cell marker, which indicates that it may be inherited.
Newborns may have a curvature of the penis. This may be part of an abnormality called hypospadias, which is different from Peyronie's disease.