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A member asked:
I have a scar on my knee from 18yrs ago. yesterday i noticed a red spot on it and the area that is pink. doesn't hurt or itch. what could it be?
A doctor has provided 1 answer
Need more info: Knees are subject to trauma. Even a mild contusion or just bending down on your knee can cause redness. Also consider an insect bite. If the discoloration continues for over a week with or without changes I would suggest that you have your family physician take a look at it.
Answered 11/28/2017
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