Walking feet always wipe the ground, the following common causes: First, the common peroneal nerve injury, the common peroneal nerve travels in the posterior lateral side of the knee joint, adjacent to the peroneal neck. If the peroneal neck fracture or surgical pull, can lead to acute injury to the common peroneal nerve, the patient can show weakness in the dorsal extension of the foot, easy toe scrape the ground when walking. If timely treatment, can still gradually recover; and if you miss the best time for treatment, generally difficult to recover. Second, serious lumbar spinal injuries, such as lumbar spine fractures, lumbar spinal stenosis, etc., not timely treatment, will occur in the lumbar spinal nerve ischemia, necrosis, thus causing the phenomenon of foot scraping when walking, is caused by the loss of muscle innervation.