The common causes of right-sided lumbar pain include exertion, lumbar degenerative diseases, urinary system diseases, tumors and so on. 1. Exertion: If a lot of right side bending exercise is carried out, right side lumbar pain may be caused by exertion. 2. Lumbar degenerative diseases: lumbar disc herniation, lumbar osteophytes, lumbar spinal stenosis and other lumbar degenerative diseases will have lumbar pain, activity limitation and other manifestations. 3. Urological system diseases: right urinary system diseases, such as right nephritis, kidney stones, urinary tract stones and other diseases will cause right lower back pain. 4. Tumor: If tumor occurs in the muscle or soft tissue of the right side of the waist, it will also manifest as swelling and pain in the right side of the waist. Right lower back pain may also be caused by other reasons, if the pain can not be relieved or the pain is severe, you should go to the hospital in time to find out the cause and carry out targeted treatment.