How do rats get kidney/bladder infections?
In most cases, urinary tract infections are caused by bacteria ascending from the urethra to the bladder and then to the kidneys themselves. Some cases are caused by sepsis (bacteria throughout the body) or in males with a prostatitis (infection of the prostate). Animals with chronic kidney stone production are more prone to chronic urinary tract infections because of the chronic irritation of the lining of the urinary tract.
