Lumbar disc herniation may affect foot numbness. Lumbar disc herniation is due to lumbar disc degeneration, partial or total rupture of the annulus fibrosus, nucleus pulposus protrudes to stimulate or compress the nerve root and cauda equina, which is caused by a syndrome, manifested by symptoms such as lumbar pain, sciatica, numbness of the lower limbs and cauda equina syndrome. Most of the patients with lumbar disc herniation pain occurs gradually, with radioactivity, the pain radiates from the buttocks along the back of the thigh to the calf and the dorsum of the foot, stimulating the proprioceptive and tactile fibers, causing numbness of the limbs, and the symptom of numbness of the feet. There are many reasons that can cause foot numbness, in addition to lumbar disc herniation, other systemic diseases such as peripheral neuritis, diabetes mellitus, cervical spondylosis, etc. can also appear foot numbness. It is recommended to go to the hospital in time when the symptoms of numbness of the feet, identify the causes and standardize the treatment.