A lumbar disc herniation of 6 millimeters is a large herniated disc, but the severity of the herniation needs to be considered in terms of spinal nerve compression as well as the patient’s self-symptoms. A herniated disc of 6 millimeters is a large herniated disc that can easily detach and fall into the spinal canal causing severe compression of the spinal nerves. If the patient’s spinal canal diameter is large, the protruding disc’s pressure on the spinal nerve roots is light, and the patient’s self-awareness of pain and numbness and other symptoms are light. It is not a serious herniated disc. Conservative treatment can be chosen, such as wearing a lumbar immobilization belt, hot compresses, baked electricity and other physiotherapy. Oral anti-inflammatory and analgesic drugs such as nimesulide and diclofenac sodium as well as neurotrophic drugs such as methylcobalamin and adenosylcobalamin can be used. If the patient’s spinal canal diameter is small or accompanied by spinal stenosis, the protruding discs cause serious pressure on the spinal nerves, and symptoms such as severe lumbar pain, leg pain and leg numbness occur, then it belongs to the serious lumbar herniated disc. Conservative treatment is generally less effective, it is recommended to choose surgical treatment, such as open spinal canal decompression, bone graft fusion and internal fixation surgery. If the lumbar disc herniation is 6 millimeters, it is recommended that the patient go to the hospital and choose the appropriate treatment under the guidance of the doctor.