Numbness of the hind legs can be more common in the clinic, and the causes are also more. First, the patient’s daily life for a long time to maintain a position, such as a long time sitting or standing for a long time, the local blood circulation is not good and induced the emergence of numbness of the legs, this situation leads to basically get up and move around, the numbness of the situation can be relieved. Secondly, the numbness may be caused by osteophytes and arthritis. Thirdly, the numbness of the back legs may be caused by the compression of the nerves by the lumbar disc herniation. Fourth, it may also be due to lumbar spinal stenosis and numbness caused by high blood sugar. Numbness of the hind legs, the patient should promptly go to the hospital to diagnose the specific causes of numbness, and then give targeted treatment.