Many reasons can lead to cramps and muscle spasms in the hands during sleep, such as the possible coldness of the hands, to check whether the sleep environment is cold, whether it is due to open air conditioning or cover the quilt is not warm enough, should promptly make the sleep environment become warm, you can use the sea tree bark soup and other hot compresses, fumigation therapy smoked hands. It may also be caused by calcium deficiency and other reasons, you should go to the hospital to check the calcium ion, if it is caused by calcium deficiency, you can take oral calcium drugs, and eat calcium food, such as drinking more milk. It may also be caused by strain or sprain of the hand, in which case you should go to an orthopedic clinic promptly and apply plasters to relieve the symptoms. Once the phenomenon of hand cramps while sleeping occurs, it is important to go to the hospital in time to identify the cause to determine the diagnosis.