There are many causes of posterior lumbar pain, which are roughly divided into the following categories: first, skin causes, such as herpes zoster. Second, lumbar causes, such as lumbar disc herniation, lumbar tuberculosis, lumbar osteophytes or vertebral compression fractures caused by osteoporosis. Third, kidney causes, such as pyelonephritis, kidney stones, kidney cysts or congenital polycystic kidney resulting in kidney perineural pulling. Fourth, posterior lumbar pain caused by systemic factors, such as rheumatoid arthritis, ankylosing spondylitis, and systemic lupus erythematosus. In addition, lumbar muscle strain, trauma, etc., are also common causes of posterior lumbar pain.