The common cause of lumbar right-sided pain is lumbar muscle strain, in addition to lumbar spine tuberculosis, renal tuberculosis and so on. 1. Lumbar muscle strain: patients such as prolonged sitting or standing or lumbar overload will lead to lumbar muscle in a state of high tension for a long time, thus producing lumbar muscle strain. Lumbar muscle strain is mostly limited to a part of the dull pain, often manifested as lumbar pain or swelling. 2. Lumbar spine tuberculosis: Lumbar spine tuberculosis is caused by the tuberculosis abscess or necrotic intervertebral disc protruding into the vertebral canal, which makes the patient’s spinal cord and nerve roots suffer from obvious radiating pain. The patient’s activities are obviously limited and the lumbar spasm. 3. Renal tuberculosis: often caused by tuberculosis mycobacteria, which can spread in the urinary system, often appearing on one side of the urinary tract with tuberculosis lesions. It is easy to cause renal atrophy or calcification, and in severe cases, hydronephrosis will appear. Patients may suffer from pain in the right side of the lumbar spine due to infection around the kidneys or ureteral blockage. There are many other causes of pain in the right side of the lumbar spine, such as lumbar disc herniation, lumbar spinal stenosis, etc. If the patient’s pain in the right side of the lumbar spine is not relieved for a long period of time, it is recommended to go to the hospital for further clarification of the cause of the disease and targeted treatment.