The urinary bladder is part of your excretory system where urine is stored until such time that it is ready to exit your body. Your urinary bladder is vital because without it, you will be urinating all the time or perhaps have a urine storage bag attached to your all the time. Because of its primary function, the bladder is very prone to infection. Bladder infection occurs when bacteria is able to penetrate through the bladder. This results to the contamination of the entire urine depository.