Thigh root cramps may be caused by muscle spasms due to stimulation by various factors, which is a normal physiological phenomenon. It may also be related to long-term strain, acute injury, calcium ion deficiency, neuromuscular disease and other pathological factors. Thigh root cramp, refers to the thigh root muscles continue to occur uncontrolled severe spasm and twitching, and even lead to the pain or dysfunction of the site of the symptom. Its causes include physiological and pathological. If under the stimulation of external physical and chemical environmental factors, the muscles of the organism will spasm and thigh root cramp occurs, which is a normal physiological phenomenon. Pathologic thigh root cramps also include many causes. In the case of long-term strain and acute injury, muscle damage, abnormal function, the muscle will occur continuous spasm. Disturbances in the balance of the internal environment, such as the destruction of calcium ions, can also lead to the occurrence of cramps. In addition to this, some neuromuscular diseases, abnormal lesions of the neuromuscular junction can lead to abnormal discharge, muscle tension, no relaxation, the thigh root muscle can also produce symptoms of continuous spasm and cramp. For patients with thigh root cramps, local massage and hot compresses can be given to relieve the symptoms. If it can not be relieved for a long time, or if the cramps occur frequently, then you should consult a doctor for examination, and take appropriate treatment according to the cause of the disease.