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What Causes A Round Spot Behind The Knee?

Posted on Fri, 3 Feb 2017

Question: Right under my knee is a round bruise with a slightly raised white spot in the middle and looks like a small red dot or could be a hair foilicle. It hurts just like a bruise when you push on it other than that no pain. Im not running a fever.

Answered by Dr. Dr. Muhammad Sareer Khalil (25 minutes later)

Brief Answer:
Need more info

Detailed Answer:
Hello and Welcome

I appreciate your concern

Kindly answer the following to comment further

Is the spot behind the knee posteriorly or anteriorly with the patella.
If possible then please upload an image of the area
For how long have these symptoms persisted.

Wishing you best of health

Thanks

Let me know if you have any query

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Dr. M.S. Khalil

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Dr. Muhammad Sareer Khalil (5 minutes later)

It is anteriorly right under my knee cap. I just noticed it yesterday. It hasn't seem to have gotten bigger. I have no other symptoms...no fever or anything.

Answered by Dr. Dr. Muhammad Sareer Khalil (4 minutes later)

Brief Answer:
Explained

Detailed Answer:
Hello again.

Based on your description with no immobility or restriction of movement, it appears to be a boil which is a skin infection involving the hair follicle.

Apply local kaolin poultice and mupirocin ointment. Most likely it will drain within a week and subside accordingly. For the pain and inflammation , ibuprofen 400 mg twice a day can be added for 3 days.

Thanks

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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar