What are the reasons for lower back pain when sleeping on ones stomach?

Lumbar pain when sleeping on one's stomach may be related to non-disease factors or disease factors such as lumbar spondylolisthesis or lumbar disc herniation. Details are as follows:

I. Non-disease Factors

1. Prolonged lying in the same position increases lumbar pressure, slows circulation, leads to ischemia, and may cause lumbar pain.

2. Catching a cold while lying down can cause lumbar blood vessels to constrict and spasm, also causing lumbar pain.

II. Disease Factors

1. Lumbar Spondylolisthesis

The cause of lumbar spondylolisthesis is unclear and may be related to factors such as vertebral arch dysplasia, degenerative changes, acute trauma, and lumbar tumors. Factors such as trauma, fatigue, obesity, or pregnancy may also induce lumbar spondylolisthesis. Patients may experience lumbar pain, radiating pain in the lower limbs, and other symptoms. Abnormal lumbar curvature during sleep can exacerbate lumbar spinal stenosis, stimulate nerve roots in the vertebral canal, and cause significant pain.

2. Lumbar Disc Herniation

Lumbar disc herniation may be related to degenerative changes in the lumbar intervertebral disc, injuries, pregnancy, or abnormal lumbar development. Long-term desk work, fatigue, or heavy physical labor can also increase the risk. Prolonged sleep increases lumbar pressure, compressing the corresponding lumbar disc tissue, exacerbating disc herniation, and intensifying nerve root compression and irritation symptoms. Patients may experience lumbar soreness, swelling, and radiating numbness in the lower limbs.

In addition to the above reasons, diseases such as dorsal myofascitis and ankylosing spondylitis may also cause these symptoms. Patients can undergo a physical examination, X-ray, MRI, and other tests at the orthopedic department of the hospital to determine the cause and cooperate with doctors for standardized intervention.