The girdle is best not to wear at night when sleeping, the details are as follows: the girdle can protect the waist, avoid excessive activity of the lumbar spine, reduce lumbar pain. However, at night when the patient sleeps in bed, the lumbar muscles and lumbar vertebrae are not weight-bearing, and there is no need to tie the girdle, otherwise it will lead to blood circulation obstacles in the lumbar muscles, and the patient will cause the symptoms of lumbar pain. In addition, the girdle, if still used at night while sleeping, will increase abdominal pressure, so that the blood supply to the internal organs is reduced, causing related dysfunctions, such as abdominal pain and discomfort. Therefore girdles should not be used at night while sleeping, but rather during daytime activities to work best.