The two most common segments of lumbar disc herniation are the lumbar 4/5 disc herniation and the lumbar 5 sacral 1 disc herniation. The central disc herniation of lumbar 5 sacral 1 is very common, and the main symptom produced is the central type of nerve compression injury symptoms, because the central type of herniation compresses mainly the spinal cord and dural sac, so it will produce symptoms of central nerve injury, such as weakness of both lower limbs, muscle strength loss, and even walking difficulties, which can lead to paraplegia in serious cases. When the lumbar 4/5 and lumbar 5 sacral 1 discs are more severely herniated in the central type, surgical treatment is usually required to correct the problem.