Lumbar muscle strain is mostly caused by long-term strenuous activities, and its self-healing methods include bed rest, rehabilitation training and physical therapy. Lumbar muscle strain is caused by the tension and spasm of the muscles in the lower back and poor blood circulation, which will result in pain, numbness, soreness and swelling, etc. If these symptoms are mild and can be tolerated, they can be relieved through bed rest, rehabilitation training and massage, massage, hot compresses, etc., and the lumbar muscle strain will be cured by itself after a period of rest and recuperation. If the symptoms are obvious and intolerable, seriously affecting the daily life and work, it is recommended to go to the regular hospital to improve the relevant examination, under the guidance of the doctor’s treatment and rehabilitation training, to avoid waiting for self-healing, which will lead to the progression of the disease.