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A member asked:

Why do my biceps get sore when doing low weights & high reps?

A doctor has provided 1 answer

Lactic acid: Lactic acid is a byproduct of anaerobic metabolism. It's toxic to the muscles and causes the pain.

Answered 6/26/2014

5.6k views

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Related Questions

A member asked:

My left arm hurts when my arm is lifted. Biceps hurt. Feels like tightening or something, not reall sore?

A doctor has provided 1 answer

A member asked:

I guess I overtrained my biceps yesterday. Very sore. Outer arm soreness to. Never felt this kind of sore. I looked into Rhabdomyolysis. Looked at symptoms the only thing that qualified me was soreness. No dark urine or swelling etc.. Did I overtrain?

2 doctors weighed in across 2 answers

A member asked:

Last night I was vomiting very forcefully. Right after that my muscles, particularly my biceps, became very sore. Other muscles to a lesser extent. After 9 hours this is beginning to subside. Is the some type of lactic acid release from the vom?

A doctor has provided 1 answer

A member asked:

Armpit soreness with burning sensation and itchy down to biceps and near breast with white linear rash due to scratch?

A doctor has provided 1 answer

A member asked:

Recently my upper arms have been experiencing soreness that seems to rotate through the muscle at the upper end of my forearms, my shoulders, biceps, and triceps. One arm is worse than the other, but both are now showing symptoms. What course of action should I take? Upper arm muscle soreness

A doctor has provided 1 answer

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