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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Lumps To Appear In The Arm After Local Trauma?

Some of my friends and I were joking around, and I was playfully hit in the right arm. I noticed a quarter-sized bump where my arm was hit. A couple seconds later, it went away. I told my friend to hit me again, and he did. Another bump appeared, and again went away after a few seconds. We tried it on my left arm, and nothing happened. After a few more attempts, my arm started hurting, but no bruise ever appeared, just more of those bumps. I m just curious to know why I had large bumps on my forearm when it was hit! It never happened to me before, or anyone i know for that matter.
posted on Sun, 1 Jun 2014
Twitter Sat, 23 May 2015 Answered on
Twitter Mon, 25 May 2015 Last reviewed on
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General Surgeon,  's  Response
Hi,Dear,thanks for the obsrvation and the query on it.In my opinion its a myogenci reactive lump-after the hit-on the muscle of the forearm.AS the bump is regressing again this possibility is more.Thanks.Wellcome again.
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What Causes Lumps To Appear In The Arm After Local Trauma?

Hi,Dear,thanks for the obsrvation and the query on it.In my opinion its a myogenci reactive lump-after the hit-on the muscle of the forearm.AS the bump is regressing again this possibility is more.Thanks.Wellcome again.