WeaknessWeakness is a lack of physical or muscle strength and the feeling that extra effort is required to move the arms, legs, or other muscles. If muscle weakness is the result of pain, the person may be able to make muscles work, but it will hurt. Current as of:
March 20, 2017 Author:
Healthwise Staff Medical Review:
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & Adam Husney, MD - Family Medicine & A. Evan Eyler, MD, MPH - Family Medicine, Psychiatry
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