A herniated disc is divided into a cervical disc and a lumbar disc. The first serious consequence of a cervical disc herniation is that the patient cannot sleep flat and needs to sleep in a sitting position, which is more painful. If the patient has been suffering from the disease for a long time, he or she may experience muscle atrophy in the arm and may have difficulty in eating. The more serious consequences of a herniated lumbar disc are severe weakening of the lower limbs, possible muscle atrophy, abnormal sensation or even loss of sensation in the lower limbs; patients with severe lumbar disc herniation may damage the cauda equina nerve and experience urinary and fecal incontinence, abnormal sensation or even loss of sensation in the buttocks and perineum.