Sciatica is a clinical symptom, not a disease. It can be caused by a variety of reasons, the most common cause is lumbar disc herniation, but also includes spinal stenosis, pyriformis syndrome, sacroiliac arthritis, pelvic tumors and other diseases, all of which can cause sciatica symptoms. The main clinical manifestation of sciatica is radiating pain from the buttocks to the back of the thighs, and the pain will be significantly aggravated when walking or coughing. For the treatment of sciatica, it is necessary to identify the cause of the disease and take appropriate treatment according to the cause. For example, sciatica caused by lumbar disc herniation requires bed rest, and local acupuncture and physiotherapy can be used to reduce the edema of the nerve roots, thus relieving the pain symptoms.