Hand muscle throbbing may be caused by physiological reasons such as overstrain and mental factors, or it may be caused by pathological factors such as hypocalcemia and cervical spondylosis. 1. Physiological reasons: hand long-term high-intensity activities or long-term inactivity of the sudden movement of the population, may cause hand muscles, tendons and other soft tissues fatigue or spasm, hand muscle throbbing symptoms; in addition, if the body is in a highly stressful environment, may also occur in the hand muscle involuntary throbbing. 2. Pathological factors: a lot of sweating or diarrhea and other reasons, may cause the body’s electrolyte disorders, resulting in the emergence of hypocalcemia, calcium ions are responsible for maintaining the normal muscle excitability, low calcium muscle excitability increases, there may be a hand muscle throbbing symptoms. Cervical spondylosis may cause the nerves innervating the hand to be compressed, resulting in abnormal sensation and muscle strength in the hand, which may also cause the above symptoms. There may be other reasons for hand muscle throbbing, so it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.