Lumbar muscle strain is a strain disease that occurs after acute and chronic injury to the muscles and ligaments of the low back, resulting in aseptic inflammation of the muscles and ligaments, causing various symptoms such as soreness and weakness of the low back muscles, swelling, fatigue, etc., aggravated by cold and exertion, and gradually relieved by rest, also known clinically as lumbar back fasciitis. The common cause of lumbar muscle strain is the incomplete recovery from acute chronic injury, which gradually transforms into chronic sterile inflammation. Some patients do not have a clear history of trauma, but long-term lumbar overload, long-term sedentary, poor posture and lack of exercise can also cause chronic strain on the muscle ligaments. In order to avoid lumbar muscle strain, first of all, avoid all kinds of acute chronic injuries, reduce weight bearing, reduce sedentary, increase functional exercises for the lumbar back muscles, and pay attention to keeping warm. When resting and sleeping, choose soft and hard mattresses, and avoid too soft mattresses. The application of anti-inflammatory and pain-relieving drugs, rehabilitation physiotherapy, and increased bed rest can also promote the rapid recovery of lumbar muscle strain.