Dermatology Questions? Ask an Online Dermatologist.
Could you tell me how long have you had this lesion? Is it the only one? Does it scale or itch? Have you had this before ?
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I would definitely have this directly checked out by a Dermatologist. You might need a biopsy. It could be a lesion related to Lyme disease and early recognition and treatment is very effective. It could also be as simple as contact dermatitis or a residual of an insect bite. It does not appear to be scaly, so, psoriasis is unlikely. Besides, this is not the typical location for that.
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This is not typical of a bedbug.