There are many reasons why the legs are numb and afraid to move, including physiological reasons and pathological reasons (such as lumbar intervertebral disc herniation), according to the cause of the disease can be taken to the general treatment, physical therapy, drug therapy, surgical treatment and so on. 1. Physiological reasons: the human body may appear numbness after standing or sitting for a long time, which is generally a normal physiological reaction due to poor blood circulation, resulting in local muscle ischemia and hypoxia caused by a change in position can be improved, and generally do not need treatment. 2. Pathological causes (1) Herniated lumbar intervertebral disc: it can cause numbness of the leg by radioactivity. Treatment includes bed rest, wearing lumbar protection, traction, etc., but also through massage, acupressure, acupuncture, etc. to relieve lumbar muscle spasm, at the same time with the use of Meloxicam, Chlorzoxazone and other drugs, if necessary, can be taken to take surgical treatment, such as minimally invasive intervertebral foramenoscopy surgery. (2) Primary sciatica: It can also cause numbness of legs, intermittent claudication and other symptoms. Commonly used drugs include analgesics (e.g., ibuprofen), neurotrophic drugs (e.g., methylcobalamin), glucocorticoids (e.g., dexamethasone), etc., which can be combined with physical therapy such as electrotherapy and infrared therapy. In addition to the above, trauma to the legs may also cause the above symptoms. If the above symptoms are not relieved, or accompanied by other symptoms, it is recommended to go to the hospital in time to identify the cause and give targeted treatment.