After sitting for a long time, the human body will compress the arteries and nerves of the lower limbs, resulting in poor blood flow and consequent loss of sensory function, which will lead to the performance of leg numbness. Generally, it can be relieved by itself after standing or walking, no special treatment is needed. If the leg numbness continues to be unrelieved, it is recommended to go to the hospital in time to identify the cause of leg numbness and actively treat the original disease.