Waking up with back pain may be related to the following reasons: 1. There may be back fasciitis. This kind of disease is often due to the continuous cold in the back of the patient during sleep, and then lead to aseptic inflammation inside the deep fascia, or secondary to cervical spondylosis, frozen shoulder and other diseases, once the attack of such diseases, will also be manifested as the whole back pain, stiffness and unfavorable activities. 2, there may be back muscle spasm. It is often seen when the patient has some bad sleeping posture or is highly nervous during sleep, such as having nightmares, which can cause the muscles of the whole body to remain in high tension, and then the back muscles will spasm after the patient wakes up, resulting in pain. 3. It may be caused by overexertion. The back muscles are overworked due to excessive labor before sleep, and a large amount of lactic acid is deposited inside them, resulting in back pain after the patient wakes up from sleep.