What causes low back pain when sleeping?

Sleeping often shows pain in the waist may be caused by sleeping in a soft bed. Sleeping in a soft bed will cause excessive sagging of the soft tissue in the waist and accumulation in a certain place, which will cause ischemia and hypoxia of the local soft tissue, thus causing nerve ischemia and hypoxia, causing pain. In addition, this condition can also cause local congestion edema, the formation of sterile inflammation, will produce some inflammatory cytokines, such as prostaglandin factor, tumor necrosis factor, will also cause the exudation of inflammatory fluid around, so it will also cause pain in the waist. In this case, it will also cause local blood circulation is not smooth, will cause lactic acid and acid products accumulation, will also cause pain in the waist. If excessive use of air conditioning fans this pain will be more obvious. For elderly patients, it is also excluded whether there are some tumor occupying diseases, which mainly show pain at night, rest pain, and pain is relieved during the day.