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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Round Black Color Bruise On Forearm?

I have a round bruise on my left forearm about 2 inches in diameter. It is black in color. In the center on it the is a skin color circle the size of a dime, with a knot in it. I don t remember hit it or getting hit by anything. Any ideas what could have caused it?
Mon, 10 Aug 2015
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Dermatologist,  's  Response
This could have been due to an abnormal response to an antibiotic, analgesic, barbiturates, or certain other drugs. The condition is like a "Target Lesion" and needs to be prevented as the next encounter with the causative drug might be more severe.
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What Causes Round Black Color Bruise On Forearm?

This could have been due to an abnormal response to an antibiotic, analgesic, barbiturates, or certain other drugs. The condition is like a Target Lesion and needs to be prevented as the next encounter with the causative drug might be more severe.