A typical lumbar disc herniation presents as low back pain with/without radiating pain to one or both lower extremities. Many people can have no low back pain, and patients who actually present with low back pain account for about 50% of the more than 10,000 patients we treat. The most important thing to have is lower extremity pain, which almost all patients have. The pain has the following characteristics: 1. radiating pain along the sciatic nerve conduction, straight to the lateral calf, dorsum of the foot or toes; 2. coughing, sneezing and defecation can aggravate the lumbar pain and radiating pain; 3. the pain increases with activity and decreases after rest. A typical patient with lumbar disc herniation can show scoliosis deformity, limitation of lumbar spine movement, and lumbar pressure pain with radiating pain. Some patients have severe symptoms of nerve compression, which manifests as calf muscle atrophy. If the herniation is large or central, there may be a numb area, which may include the buttocks, lateral femur, calf and foot. If the compression is severe, there will be loss of control of urination, constipation and sexual dysfunction. Some patients may develop partial or major paralysis of both lower limbs, etc., and become bedridden for a long time, which seriously affects work and life.