Patients wake up with back pain, the following reasons are common: First, the mattress they sleep on is too hard: especially hard beds, prolonged sleep will lead to ischemia and hypoxia in the lumbar muscles, affecting tissue metabolism, thus leading to a large amount of lactic acid accumulation inside the muscles, which will stimulate the nerves and cause clinical symptoms of back pain. Second, cold: Patients do not pay attention to keeping warm during sleep, resulting in cold in the lumbar back, causing muscle spasm and inflammation of fascia, and patients will also have clinical symptoms of lumbago. Therefore, if low back pain occurs after waking up from sleep, early diagnosis and early treatment are necessary to enable rapid relief of clinical symptoms. Patients should usually sleep on soft mattresses and pay attention to keep warm in order to prevent the recurrence of clinical symptoms of low back pain.