Why do kidney stones always have a fever?

Kidney stones show repeated fever may be due to pyelonephritis problems, kidney stones often easily lead to ureteral obstruction. Repeated hydronephrosis easily lead to urinary tract and kidney infection, so once the fever shows, it is necessary to go to the hospital as soon as possible for urine routine, urine culture and drug sensitivity examination to further clarify, showing obvious infectious problems that need timely application of antibiotics for treatment. At ordinary times, we must pay attention to drinking more water as much as possible, do not eat too much irritating food, stones show obvious obstruction is the need for timely treatment through extracorporeal shock lithotripsy and other methods.