Causes of lumbosacral pain are as follows: 1, postural reasons: such as sedentary, long-term ambulatory work, good for students, office workers, people engaged in heavy physical labor, etc. Patients need to ensure rest and carry out appropriate treatment; 2, physiological reasons: such as congenital isthmus cleft, lumbar disc protrusion, lumbar muscle strain patients, and some thin young women with weaker lumbar muscles, etc. Among them, lumbosacral pain caused by weak lumbar muscles, patients can relieve symptoms by strengthening the exercise of the lumbar back muscles, such as five-point support, Xiaoyanfei and other activities.