Lateral thigh numbness may be caused by lumbar disc herniation, lateral femoral dermatitis, etc. Physiotherapy, medication or surgery are feasible. 1. Lumbar disc herniation: due to the compression of the nerve root by the herniated disc, it can cause pain and numbness in the lateral thigh, daily rest should lie on a hard bed, avoiding bending and squatting, etc. Physiotherapy such as traction treatment can be given to increase the intervertebral space, so that the compression of the nerve root can be relieved, oral nutritional nerve medication, such as methylcobalamin, etc. Surgery may be needed if the symptoms are more serious. 2. Lateral femoral cutaneous neuritis: due to the lateral femoral cutaneous nerve through the inguinal ligament when the regional compression leads to numbness of the lateral thigh, usually should pay attention to rest, take nutritive nerve drugs such as methylcobalamin, B vitamins, etc., the symptoms are more serious need for surgical treatment, to improve the symptoms of local compression, to alleviate the symptoms of numbness of the lateral thigh. Lateral thigh numbness can also be caused by other reasons, it is recommended to consult a doctor in time to clarify the cause of the targeted treatment. The above medication should be used under the guidance of a doctor.