Harvard Health Publishing
Q. I have been experiencing strong muscle cramps that curl my fingers into a claw shape, which I can straighten only by using the other hand. How can I prevent this?
A. The symptoms you describe sound like carpal spasm. Spasms, or cramps, are involuntary contractions in the hands or feet. The most common sources of spasms include overused muscles and dehydration. Prolonged writing or typing can lead to hand cramping from overuse of the muscles. Other reasons for cramping are low levels of calcium and magnesium. Numerous things can affect your calcium level, but the usual culprit is vitamin D deficiency.
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