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"Urinary tract infections (UTIs) are common in companion canines, especially in females. These infections are uncomfortable at a minimum and can become extremely painful.  Affected animal always suffer varying degrees of discomfort, up to and including a feeling of urgency to urinate, a burning sensation when urinating and severe accompanying pain. However, some dogs have a high pain threshold and will not show any outward signs of discomfort.  This makes urinary tract infections sometimes hard to diagnose, because they often are only detected when the dog is brought to the clinic for some other reason.  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.petwave.com/Dogs/Health/Urinary-Tract-Infections/Symptoms.aspx>