No: Lactic acid, although we say "a build up of lactic acid" , etc, does not make a bump or knob. You could have a muscle spasm of some sorts or another injury such as a muscle tear.
Answered 4/14/2021
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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