Pyelonephritis usually needs to test urine routine, blood routine, imaging and other related tests, and urine culture. 1. Urine routine: urine routine test for pyelonephritis can assess the number of leukocytes and red blood cells in urine, and can determine whether there is bacterial infection according to urine sediment microscopy; urine bacteriological examination is mainly to conduct bacterial smear and drug sensitivity test, in order to select sensitive antibiotics for anti-infection treatment. 2. Routine blood test: routine blood test can find that the number of white blood cells and neutrophils are significantly increased, and the renal function test can show a decrease in glomerular filtration function. 3. Imaging examination: Imaging examination is mainly for ultrasonic imaging of the kidneys, which can determine acute and chronic pyelonephritis. If the patient needs to improve the examination of pyelonephritis, it is recommended to go to the regular hospital and have the professional doctor to prescribe and evaluate the examination results.