These include the palms of the hands, the soles of the feet and the eardrums.
Is it normal to have a curved penis?
Apple cider vinegar has been used as a home remedy for many common health conditions.
But in severe cases, the curve in the penis can make having sex difficult, painful or even impossible.
What is Peyronie's disease?
Some men with the condition get pain in their penis, while others get none.
Castle EP expert opinion.
American Urological Association http:
Recent studies show no improvement in patients treated with vitamin E compared to placebo.
One type of shortening is a procedure called the Nesbit plication.
The ultimate situation is usually a uniform expansion of the tissue and a successful erection.
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What's the outlook?
More than one plaque can cause complex curvatures.
However, research suggests that the condition may develop after trauma to the penis, such as bending or hitting.
This can reduce pain, but steroids such as cortisone have led to unpleasant side-effects, including the wasting or death of healthy tissues.