Peyronie’s disease is an inflammatory condition of the penis which causes scar tissue to form inside the shaft. The scar tissue causes an abnormal curvature of the penile shaft.
Peyronie’s disease is where plaques (segments of flat scar tissue) form under the skin of the penis. These plaques can cause the penis to bend or become indented during erections. The plaques can often be felt through the skin, and can also be painful.
Penises vary in shape and size, and having a curved erection isn’t necessarily a cause for concern. But Peyronie’s disease causes a significant bend or pain in some men. Peyronie’s disease can make sexual intercourse painful, difficult, or impossible. In extreme cases, scar tissue may cause shrinkage or shortening of the penis.