Numbness of sciatica may cause trauma, activity limitation, muscle atrophy and so on. Sciatica numbness is mostly caused by lumbar disc herniation compression of the sciatic nerve, long-term compression of the sciatic nerve, which leads to the sciatic nerve innervated area of the skin sensory retardation, numbness occurs. Numbness and dullness of the skin may cause burns or other traumatic injuries if the skin is not exposed to high temperatures. Sciatica may cause pain in the lower extremities, resulting in limited mobility. Prolonged numbness of the skin triggers wasting atrophy of the muscles in the area of numbness, which may lead to loss of muscle strength. Sciatica, numbness can be massaged local skin, hot compresses and other methods to promote blood circulation. You can take methylcobalamin or glutamine to nourish the nerves to promote the recovery of numbness. Sciatica numbness will should be timely to the regular hospital consultation, by the doctor according to the condition of the timely removal of the cause of the disease, as soon as possible recovery.