Bladder stones are not found in every case of an animal with a urinary tract infection. However, the chance that struvite (the most prevalent sort of bladder stones) will form in the urine is tremendously increased. The infection causes a raise of the pH in the urine. When urinary pH is high, there is an increased chance of struvite formation. To prevent animals with a urinary tract infection from getting struvite, it is recommended to feed a struvite prevention diet.