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Urinary tract infections are caused by bacteria entering the urethra or the tube leading from the bladder to the outside in human beings and other animals. The urethra in a female is usually only a sonometer or two in length and therefore women are more prone to have urinary tract infections than men who have a longer urethra that goes from the bladder to the end of the penis. This doesn't mean that men can't get urinary tract infections or cystitis which is infections of the bladder, we can and we also get prostatitis from those same bacteria entering the prostate gland on the way to the bladder. The woman and/or the man who has urinary tract infection usually presents with a burning sensation with urination. They also can have frequency of urination meaning they feel the urge to go a lot but don't necessarily do a normal volume or excrete a normal volume of urine and they also have urgency that is a sense that they have got to go right away and they get there and can't do much so the main symptoms of a urinary tract infection are pain with urination, frequency and urgency. The most common antibiotics used now for treatment depending on the settings are Macrobid or Nitrofurantoin, Septra, Cipro and a few other medications.