10 Surprising Things Muscle Spasms Reveal About Your Health

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Though the occasional spasm—an involuntary contraction of the muscle—is totally normal and nothing to get bent out of shape about, a persistent one can hint at an underlying condition. Here's what's going on, and when to seek a doctor's help...

According to Robert Graham, MD, MPH, of FRESH Med at Physio Logic NYC, if the spasm lasts more than three days and is very painful or is aggravated by coughing or sneezing, it may be a disc issue.