Acute lumbar sprain can usually be recovered in 1-4 weeks, the specific situation is that acute lumbar sprain is commonly caused by the wrong posture when lifting heavy objects, which leads to acute injury of soft tissues of the lumbar region. The onset of the site is mostly found in the lumbosacral joint and sacroiliac joint muscles, ligaments, mild cases may be sacrospinal muscle or lumbar dorsal fascia starting and ending points of the tear, while the serious cases can be accompanied by segmental supraspinous, interspinous ligament tear, and even have a fracture of the articular eminence. The patient will show sudden, severe pain, limited lumbar movement, difficulty in straightening as well as turning around, and stiffness in the lumbar region, and the patient often uses both hands to support the lumbar region. After active treatment and proper rest, patients will recover after 1-3 weeks for mild cases, while severe cases need to rest for 3-4 weeks to make full repair of soft tissues before resuming work, and pay attention to preventing repeated lumbar sprains to avoid adverse consequences.