If you get up during squatting and are unable to flex and extend your lower back, it is mostly indicative of an acute lumbar sprain caused by a misalignment of the small joints. For this kind of acute lumbar sprain, most of them are triggered when bending or stooping to carry heavy objects. Patients often present with severe pain in the lower back, accompanied by limitation of lumbar flexion and extension activities. Acute lumbar sprains can be treated with acupuncture, which can be very effective in improving acute lumbar sprains. In addition, if there is no condition of acupuncture, you can consider instructing the patient to strictly bed rest, reduce bending or stooping to carry heavy objects. Local hot compresses can be applied to relieve muscle spasms in the lower back, and the patient can also recover on his own after a period of rest.