Hand cramps are often caused by electrolyte imbalance, overuse, and rheumatoid arthritis. Depending on the cause of the symptoms, different treatments should be chosen. Common treatments include general treatment, physical therapy and medication. 1. Calcium deficiency: Muscles need a normal calcium balance to function properly, and if calcium levels are disturbed or out of balance, this can lead to muscle contractions and hand cramps. In this case, you should pay attention to the calcium intake in your regular diet, and you can take some calcium gluconate tablets. 2. Overuse injuries: triggered by prolonged involvement in fine motor activities, thus causing the muscles to be affected by the exercise. In this case, you need to rest in time, avoid overwork, and pay attention to the exercise of the corresponding muscles. 3. Rheumatoid arthritis: Rheumatoid arthritis is a kind of arthritis, the human body will attack its healthy cells, thus causing pain in the affected joints and other parts of the body, occurring in the joints of the hand will cause hand cramps. You can apply a hot water bag to the joints to improve local circulation and loosen the muscles. The causes of hand cramps are also weather factors, emotional tension, etc. When the symptoms are not relieved for a long time, patients are advised to go to the hospital for timely examination and treatment of the cause. The use of the above drugs need to follow the doctor’s instructions.