Lower back pain at night more powerful is how, this situation will have the following reasons: 1, daytime exertion, muscle tension bad posture, such as long-term stooping weight bearing, squatting work exertion aggravation, but the daytime energy dispersion, sustained activities do not pay attention to the situation of lumbar pain, the nighttime energy concentrated in the pain site, will be aggravated by the pain. And after overwork during the day, the night inflammatory substances increase secretion, will cause pain aggravation, at the same time and plant nervous function has a relationship, this time the parasympathetic nerve excitation, relaxation will cause pain aggravation. 2, lumbar pain in the night pain, but also to pay attention to whether there are other diseases caused by the pain, such as inflammation and stones and other malignant diseases, will cause pain at night, the pain at night is serious, after resting can not be Relief, need to go to the regular hospital to check clearly, symptomatic treatment.