Kidney area pain ultrasound is not abnormal, the possible cause is urinary tract infection, may also be lumbar spine problems, lumbar muscle problems. 1. Urinary tract infection: patients with pyelonephritis may have pain in the renal region, such as percussion pain, at this time, you need to improve and perfect the blood routine, urine routine, urine culture and other tests, according to the results of the urine culture of the choice of antibiotics such as quinolone treatment. 2. Lumbar spine problem: if there is lumbar spine fracture or lumbar disc herniation, it can also cause pain in the kidney area, at this time, it is necessary to improve the lumbar spine MRI and other tests to make a clear diagnosis, and then perform surgical treatment if necessary. 3. Lumbar muscle problem: If there is lumbar muscle strain, it can also cause pain, and it is recommended to rest. If pain occurs in the kidney area, it is recommended to consult the hospital, complete the relevant examination and treatment under the guidance of professional physicians.