The numbness of the patient’s leg can be improved by cold compress treatment, incision and reduction internal fixation treatment and conservative treatment as follows: First, cold compress treatment and incision and reduction internal fixation treatment: if the local serious swelling caused by trauma and compression of nerves lead to numbness of the leg, cold compress treatment can be continued. If there is a fracture, it is also necessary to make an incision to restore the stability of the fracture, eliminate local swelling as soon as possible, and after the blood circulation is restored, the numbness symptoms will be relieved accordingly. Second, conservative treatment: if the lumbar intervertebral disc herniation or pear-shaped muscle syndrome and other diseases, caused by the nerve conduction dysfunction, manifested as numbness in the legs, can be bed rest, lumbar traction, ultrashort-wave therapy, as well as buttock massage, massage therapy, and with acupuncture and other physiotherapy, can improve the sciatic nerve conduction dysfunction, and significantly alleviate the symptoms of numbness of the legs. Normally, attention should be paid to the protection of the lumbar spine and sciatic nerve to avoid thigh injuries, and the protective function can be enhanced by exercising the muscles of the above parts.