There are many reasons for diabetic leg numbness, such as diabetic peripheral neuropathy, lumbar spinal stenosis, sciatic nerve compression, etc., and the cause of the disease should be identified in time. 1. Diabetic peripheral neuropathy: when diabetic peripheral neuropathy, the patient’s peripheral nerve function will be impaired, and the patient will have the symptom of bilateral leg numbness, which needs to be controlled by blood glucose in time and be treated by using the medicines that nourish the nerves and improve the circulation under the guidance of the doctor. 2. Lumbar spinal stenosis: Lumbar spinal stenosis will lead to compression of the spinal nerves behind the lumbar spinal canal, and the nerves innervating the legs will become ischemic, which will lead to unilateral numbness of the legs, and it can be treated with analgesics and surgery under the guidance of doctors. 3. Sciatic nerve compression: sciatic nerve compression will lead to poor blood circulation, so that patients experience numbness of the legs, can be treated under the guidance of the doctor through rest, massage, oral medication, surgery and other ways. Diabetic patients with symptoms of leg numbness should go to the hospital in time, and give targeted treatment after the cause is clarified by the doctor.