The common causes of back pain at night when sleeping are the following: First, the waist suffers injury or overexertion during the day, resulting in local congestion, edema, inflammatory reaction, resulting in the accumulation of local metabolites and poor blood circulation at night when sleeping, resulting in painful symptoms. Secondly, it can be seen in the cold when sleeping, such as direct blowing of air conditioner or low room temperature plus poor quilt cover leading to cold in the lumbar region, local blood circulation will also be affected, resulting in painful symptoms. Third, it can be seen in the lumbar spine disorders, such as lumbar disc herniation, lumbar degeneration, etc.. Due to the existence of the underlying disease, incorrect posture at night when sleeping or the bed is too soft and other triggers, thus appearing lumbar pain symptoms, it is recommended that patients promptly go to the hospital for consultation to find the cause of the corresponding treatment.