What is the cause of back pain that gets better after sleeping and waking up?

Sleeping back pain gradually improves after getting up, mainly considered as lumbar muscle strain, ankylosing spondylitis, lumbar intervertebral disc herniation and so on.
1. Lumbar muscle strain: mainly because of long-term maintenance of a posture or long-time repetition of a single action, so that the patient’s lumbar muscle fibers are repeatedly stretched, so that the local congestion and edema, the formation of aseptic inflammation. Long-term in this state, will cause lumbar muscle fiber damage, so that the back pain after sleeping to get up and gradually improve the situation.
2. Ankylosing spondylitis: manifested as pain in the lower back or buttocks, obvious after lying down or sitting for a long time, may be accompanied by a feeling of stiffness, generally can be reduced after activities. Therefore, there may be back pain after sleeping and getting up gradually improve the situation.
3. Lumbar protrusion: short for lumbar intervertebral disc herniation, the patient’s main symptom is lumbar back pain, especially when keeping a position for a long time, the symptom is more obvious. Therefore, the back pain after sleeping will gradually improve after waking up.
Therefore, it is recommended that patients go to the hospital in time for examination to clarify the cause of the disease and carry out targeted treatment.