The typical symptom of lumbar disc herniation is lumbar and leg pain. The pain is usually radiating, radiating from the waist and buttocks along the back and outside of the thigh, straight to the outside of the calf, the back of the foot or toes, and also radiating along the front of the thigh to the inside of the knee joint, and the pain increases when coughing, sneezing and defecating, and increases when moving and decreases after rest. Severe lumbar disc herniation can also compress the cauda equina nerve and cause urinary and fecal disorders. There are also some lumbar disc herniations that only manifest as pain in the lower back without radiating pain in the lower extremities. Generally, if a lumbar disc herniation is suspected, imaging examinations should be performed. Although X-ray films cannot confirm the diagnosis of lumbar disc herniation, they can be used to exclude some disorders, so they are the first examination of choice; CT or MRI of the lumbar spine can clarify the diagnosis and the location and degree of disc herniation; in some special cases, myelography can also be considered.