After bending over, there is back pain to straighten up, it is likely that there is an acute lumbar sprain or lumbar disc herniation. In this case, the following measures should be taken: 1. Patients should not continue to force themselves to stand up or walk, but immediately find a safe place to sit down or lie down to rest for a while. 2. Ask other people around to help find a device that can fix the lumbar abdomen. After the above treatment, the patient should go to the nearest hospital orthopedic department with the help of others. If there is no one around, you can also call 120 and ask for medical help.4. Upon arrival at the hospital, the doctor will first conduct a thorough assessment of the patient to determine the cause of the current pain. If an acute lumbar sprain is confirmed, the patient will be asked to rest on a rigid bed and be treated with anti-inflammatory, anti-swelling, pain relieving and muscle spasm relieving medications.