Lumbar muscle strain appears in the middle of the night pain is considered to appear two aspects of the reason: First, may be because of sleeping long time to keep a posture, aggravate the burden on the waist, can be localized hot compresses, try to change a posture to sleep or put a warm baby on the waist, can be a certain degree of relief of lumbar pain, sleep also try to choose a hard bed board, to lie flat side lying mainly. Second, rest when sleeping, human metabolism slows down, blood circulation also slows down, coupled with the quiet with the whole body relaxation, local sensation is more sensitive than during the day, so in the middle of the night lumbar pain will be aggravated. It is recommended that patients pay attention to the protection of the waist, do massage to promote local blood circulation or external use of blood circulation cream, such as Yunnan Baiyao cream, combined with physiotherapy, lumbar muscle strain will have a certain degree of relief.