definition of bladder infection
When you get a bladder infection, it leads to cystitis, which is when your bladder swells and gets irritated. Thatâs what causes the symptoms. A bladder the most common type of urinary tract infection (UTI). Here are the parts of your urinary tract and what they do: Your kidneysclean waste from your blood and make pee. Your ureters are thin tubes, one for each kidney, that carry pee to your bladder.