Early symptoms of postoperative lumbar spine infection include elevated body temperature, joint pain, lumbar pain and redness and swelling of the wound. 1. Elevated body temperature: postoperative infection will have a sudden increase in body temperature, and the temperature will be more than 38.5 ℃, which will last about 1 to 2 weeks. 2. Joint pain: at the same time as the temperature rises, there will be obvious joint pain symptoms, which will be aggravated at night, making it difficult for patients to sleep, and they need to take painkillers to relieve it. 3. Lumbar pain: early postoperative infection will be accompanied by the phenomenon of lumbar pain, lumbar pain is more pronounced in the activities, after bed rest, will get some relief. 4. Wound redness and swelling: early infection after lumbar spine surgery, there will be obvious redness and swelling of the wound and even oozing and other manifestations. Once the wound is inflamed and infected, it is recommended that patients should be treated effectively according to their infection symptoms.