Surfer's knots are a cutaneous condition caused by chronic pressure over bony prominences leading to thick fibrotic nodules on knees, knuckles, dorsal feet, often seen with those who perform surfing, boxing, football, and marbles.
See also
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Turf toe
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Tennis toe
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List of cutaneous conditions
Many skin conditions affect the human integumentary system—the organ system covering the entire surface of the body and composed of skin, hair, nails, and related muscle and glands. The major function of this system is as a barrier against t ...
References
Skin conditions resulting from physical factors
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