Whether the lumbar disc herniation is serious, and the degree of protrusion is very relevant, generally according to the degree of protrusion is divided into lumbar disc bulge, mild protrusion, severe protrusion, protrusion free fall into the spinal canal, as follows: 1, lumbar disc bulge, mild protrusion: both do not belong to the serious situation, in these two types, often only cause lumbar pain, and does not cause obvious nerve root of the radioactive pain, sometimes occasionally. 2.Severe herniation, herniated free fall into the spinal canal: If the lumbar disc herniation is more serious and the herniated disc compresses the spinal nerve root or compresses the spinal cord, it will cause radioactive pain in the lower limbs and loss of strength in the lower limbs. If the herniated lumbar disc falls free into the spinal canal, it will cause pressure on the cauda equina nerve, which may cause urinary and fecal dysfunction and numbness in the perineal area. The latter two are more serious cases, and surgery is generally recommended.