Surgery is needed when lumbar disc herniation is ineffective with conservative treatment, when it affects work and life, and when single or multiple nerves are compressed. 1. When the effect of conservative treatment is unsatisfactory: when the patient’s history of lumbar disc herniation is more than six months, and lumbar pain, leg pain, leg numbness occurs for more than three months, and the effect of conservative treatment for six months is unsatisfactory, then surgical treatment can be adopted. 2. When it affects work and life: If the symptoms of lumbar disc herniation, such as lumbago and leg numbness, persist for a long period of time and seriously affect the patient’s work and life, surgical treatment is available. 3. When single or multiple nerves are compressed: If lumbar disc herniation leads to single or multiple nerves being compressed, such as the combination of cauda equina compression manifestation, symptoms such as dysfunction of urination and defecation and numbness of perineum will be appeared, and surgical treatment is generally recommended.