Dermatology/skin bump on leg

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Question
I have a hard bump on my leg caused by an insect bite years ago. I think it is a dermatofirboma. I am scared to touch it. I am concerned about this possibility of it spreading, and I avoid touching it. Is it contagious to other areas? Has there been any cases in your experience where a dermatofibroma was able to spread elsewhere?

Answer
Dermatofibroma (superficial benign fibrous histiocytoma) is a common cutaneous nodule of unknown etiology that occurs more often in women. Dermatofibroma frequently develops on the extremities (mostly the lower legs) and is usually asymptomatic, although pruritus and tenderness can be present. They do not spread to other parts of your body and they are not contagious. In your case the insect bite caused the dermatofibroma to develop.

Dermatology

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Michael S. Fisher, <B>Ph.D., M.D.</B>

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