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Pitted Keratolysis
This patient information and photograph on Pitted Keratolysis is provided by John L. Meisenheimer, M.D. a board certified
Dermatologist and skin care specialist based in Orlando, Florida. This
information is not intended as a substitute for the medical advice or treatment of a
dermatologist or other physician.
What is it? Pitted keratolysis is a distinctive
non-inflammatory bacterial infection of the soles of the feet that is
characterized by appearance of pits on the soles. The feet also commonly have an
associated bad odor.
What causes it? Pitted keratolysis is a relatively
common disorder, although it is often overlooked. Moist occluded feet allow for
bacteria to overgrow on the soles. Byproducts from the overgrowth of the
bacteria cause the outer layers of the skin to breakdown forming pits. These
chemical byproducts also cause the foul odor, which is frequently associated
with pitted keratolysis. It may occur as an occupational disorder among
industrial workers, as well as running enthusiasts, and in others whom the feet
may be moist.
Is it dangerous? Pitted keratolysis is not a dangerous
condition. The lesions may appear rather prominent from a brown coloration due
to encrustation of dirt in people who walk barefoot. Other than in visual
effect, the lesions are usually an incidental finding and are often unnoticed by
patients and are rather distressed by the visual appearance of holes in their
feet that has appeared inexplicably. In many cases, the chief complaint is
excessive sweating (hyperhydrosis) of the feet.
Can it be cured? There are a number of successful
treatments. Keeping the feet dry is important. Patients should avoid wearing
plastic or rubber shoes and should opt for open sandals or leather shoes. Also,
socks should preferably be cotton and not synthetic plastics, like polyester.
Will it spread? Pitted keratolysis stays limited to the
soles of the feet and rarely the palms of the hands.
Is it contagious? Pitted keratolysis is not contagious
and you cannot "catch it" from anyone.
© John L. Meisenheimer, M.D.
2004 WWW.OrlandoSkinDoc.com
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