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THE MERCK MANUAL MEDICAL LIBRARY: The Merck Manual of Medical Information--Home Edition
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Peyronie's Disease

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Peyronie's disease is a fibrous thickening that contracts and deforms the penis, distorting the shape of an erection.

Many men have a small degree of curvature of their erect penis. Peyronie's disease produces a more severe deformity. Inflammation in the penis results in the formation of fibrous scar tissue that causes curvature in the erect penis, making penetration difficult or impossible. However, what causes the inflammation is not known.

The condition can make an erection painful. The scar tissue can extend into the erectile tissue (corpora cavernosa), preventing erection from occurring.

Minor curvature or disease that does not impair sexual function does not require treatment. Peyronie's disease may resolve over several months without treatment. No treatment has proven clearly successful.

Vitamin E, which can aid wound healing and decrease scarring, may be taken by mouth. Corticosteroids or verapamilSome Trade Names
CALAN
ISOPTIN
can be injected into the scar tissue to decrease inflammation and reduce scarring. Ultrasound treatments can stimulate blood flow, which may prevent further scarring. Radiation therapy may decrease pain; however, radiation often worsens tissue damage. Surgery is not recommended unless the disease has progressed and the curvature has become too severe for successful intercourse. Surgery to excise the scar may worsen the disease or result in erectile dysfunction (impotence).

Last full review/revision February 2003

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