Lumbar muscle strain is usually painful for about 2~3 weeks, and the exact time needs to be judged according to the severity of the condition and the treatment method. Lumbar muscle strain injury is under the influence of long-term weight bearing or poor posture and other factors, the lumbar muscles and attachment points of accumulated damage, resulting in chronic aseptic inflammation, and recurring lumbar pain phenomenon. If the symptoms are mild, after rest and standardized treatment, the inflammation will be controlled and the pain will be relieved in about two to three weeks. If there is no timely treatment, or the condition is not well controlled, the pain may recur. Patients with lumbar muscle strain should pay attention to rest in normal times, develop good posture, and avoid prolonged standing and sitting. Also pay attention to the lumbar warmth, avoid cold and damp stimulation. You can carry out lumbar and dorsal muscle functional exercise to enhance the strength of the lumbar muscles. Lumbar muscle strain patients such as lumbar pain recurrence, should go to the hospital in time for further diagnosis and treatment.