Penile induration is a condition that is characterized by the formation of fibrous plaques on the dorsolateral portion of the penis leading to the hardening of the penis. It usually involves the membrane surrounding the erectile tissue. This eventually causes a painful constriction of the urethra or deformity of the shaft or both. The plaques are thickened and hard at some areas which are actually a type of internal scarring. Calcium compounds can also accumulate in the fibrous tissue thus causing the plaques to become harder. Penises have some curvature naturally, but with this disorder, there is an increase in the curvature of the penis giving a look of much curved penis.