The back pain may be caused by the mattress being unsuitable for sleeping, resulting in excessive strain on the fascia of the lower back. 2. If the patient has pain and stiffness in multiple joints, it may be caused by ankylosing spondylitis, and patients are advised to clarify the cause. The patient may also have a backache in the morning due to strain the day before or during the day. 4. Symptoms. Therefore, within a short period of time without relief, you must promptly go to a regular hospital, improve the necessary relevant examination, and choose a reasonable treatment method after clarifying the cause.