If women have back pain at night while sleeping, the following causes are common: First, cold in the lumbar region: female patients who get cold in the lumbar region during sleep will have acute tension and spasm of the lumbar muscles and will have clinical symptoms of pain in the lumbar region. Second, acute attack of lumbar disc herniation: clinical manifestations of lumbar pain will also appear during sleep at night, accompanied by difficulty in turning over, radiating pain or numbness in the lower limbs, mostly occurring in middle-aged and elderly patients, and the lesion of the lumbar disc can be confirmed through CT examination and MRI. Through early diagnosis and early treatment, the above clinical symptoms can be quickly relieved. Patients should usually pay attention to protecting the lumbar region from cold, as well as lumbar disc herniation and other diseases to prevent the clinical symptoms of sudden pain in the lumbar region.