Swelling and pain in the lumbar pole is caused by the following reasons: a. It may be caused by lumbar muscle strain. It is seen in patients who have long periods of sitting and standing, and do not exercise frequently, at which time it can lead to strain of the lumbar muscles. The main symptom of such patients is soreness and weakness in the lumbar region, and they feel significant swelling and soreness in the lumbar region after sitting and standing for a long time. Second, it may be caused by trauma to the lumbar region. It is seen when there is an acute lumbar sprain or a fracture of the lumbar vertebrae in the lower back. The presence of such injuries can cause local hematoma or inflammatory edema in the lumbar region, which can lead to a feeling of swelling on top of the pain. Third, the presence of the effects of osteoporosis. Some patients with osteoporosis may also feel soreness and swelling in the lower back. Fourth, it may be caused by emotional problems, such as patients in the recent emotional reasons leading to anger or depression, at this time there may be quarter rib, lumbar swelling and pain, in Chinese medicine is due to qi depression, qi stagnation caused by.