Hand cramps are divided into physiological and pathological, pathological causes of endocrine diseases, neurological diseases and orthopedic diseases, etc., can not be simply summarized by four diseases. 1. Physiological: adolescents may experience hand cramps after prolonged writing and typing, sudden cold stimulation and weightlifting training, etc. This is a normal physiological phenomenon, which can be recovered with proper rest and does not require additional special treatment. 2. Pathological: Hand cramps may occur in endocrine diseases such as hypocalcemia, neurological diseases such as epilepsy, Parkinson’s disease and hysteria, and orthopedic diseases such as cervical spondylosis. If you suspect that hand cramps are caused by pathological reasons, it is recommended that you go to the hospital in time for examination to find out the cause of the disease, and under the guidance of a professional doctor for standardized diagnosis and treatment.