Acute lumbar sprain is an acute laceration of the lumbar muscles, fascia, ligaments and other soft tissues caused by sudden overstretching due to external forces, which often occurs when lifting heavy objects and strong contraction of the lumbar muscles. Acute lumbar sprain can tear the attachment points of lumbosacral muscles, periosteum, fascia and ligaments. How does it behave? Patients have lumbar pain immediately after the injury, which is persistent and severe, and the next day may be more serious due to local bleeding, swelling and lumbar pain; some just slightly twist the lumbar area, and there is no obvious pain at that time, but they feel lumbar pain the next day after rest. The pain can be aggravated by coughing, sneezing or urinating or defecating. The pain can be aggravated when coughing, sneezing, urinating or defecating. When standing, the back is often held by the hands, and when sitting, the hands are used to support the chair to relieve the pain. The pain occurs immediately on one or both sides after the lumbar muscle is sprained; sometimes the pain can occur half a day or overnight after the injury, and the lumbar movement is obstructed, and the pain is slightly lighter at rest, but more severe when moving or coughing. When examined, local muscle tension, pressure pain and traction pain are obvious, but there is no bruising phenomenon. In our daily life, we often encounter lumbar sprain. So how should we deal with it after lumbar sprain? 1, if there are conditions, can go to the local formal hospital to perform lumbar spine CT and lumbar spine positive and lateral film examination, in order to exclude lumbar disc protrusion, compression fracture and other diseases; 2, if conditions do not allow, can lie flat at home on a hard bed for 1 week, oral anti-inflammatory and analgesic drugs, such as fenbuterol, fotarine, etc., pay attention to take after meals; local pain can be used externally to live blood pain cream and other creams, pay attention to skin allergies are prohibited. If there is no effect after the above treatment, please go to the regular hospital in time to exclude other diseases.