This is mainly due to the contact between the kidney stone and the mucosa of the renal pelvis, which leads to local mucosal congestion and edema that can leak out red blood cells and protein from the tissue into the urine. After lithotripsy surgery, the elevation of protein and red blood cells will return to normal levels. If you find that the protein and red blood cells are always higher than the physiological level, you should clarify whether the kidney function has changed due to the long time obstruction of the kidney stone, and if it causes kidney inflammation, you need timely and effective treatment, because once the kidney disease progresses, it is irreversible, and timely treatment is needed to prevent the sudden progress of the disease.