Can recurrent urinary infections cause kidney problems?
Yes they can lead to kidney damage. This is why this is among the few conditions that I believe antibiotics should always be used and fairly quickly. Infection can reflux up from the bladder via the ureters to the kidney. Here it can cause pyelitis or pyelo-nephritis. This can lead to septicaemia. It can also permanently damage and scar the kidney. If it is severe and frequent enough it can result in renal failure.