Lumbar distension is common for the following reasons: First, overweight, patients such as excessive obesity, can lead to lumbar muscle overload, causing lumbar muscle congestion occurring distension symptoms, through aerobic training and anaerobic training, reduce the fat content and reduce body weight, you can alleviate the symptoms. Second, the mattress soft hardness is not appropriate, caused by lumbar muscles during sleep can not be fully relaxed, muscle strength can not be fully restored, thus causing lumbar cumulative injury caused by lumbar distension symptoms, change to soft hardness of the right mattress, so that the lumbar muscles to fully rest, can improve the symptoms of distension. Third, fitness sports, lumbar muscle strength training, resulting in a short period of lumbar congestion occurred swelling symptoms, by stretching the lumbar muscles, swelling symptoms can be significantly relieved in 1-3 days.