The pain on both sides of the upper back is usually caused by the following diseases: 1. acute kidney stones, kidney stones, such as stones in the first narrowing of the ureter will appear on both sides of the back pain, especially on both sides of the upper back, it is recommended to lithotripsy treatment. 2. acute pyelonephritis will also be symmetrical pain on both sides of the upper back, when accompanied by frequent urination, urinary urgency, painful urination or color change of urination symptoms. Another common condition is acute lumbar disc sprain or surgical lumbar disc herniation, which also causes radiating or compressive colic and pain on both sides of the upper lumbar region, or corresponding nerve root numbness, swelling, or pain. Regardless of the cause of the pain on both sides of the upper back, immediate medical attention at a hospital is recommended.