A. UTI (urinary tract infections) is most often caused by bacterial infection of bladder but sometimes very similar signs can be produced by bladder stones, polyps, problems with prostate gland or even tumour in the urinary tract. The most common signs of UTI include frequent urination which often is painful and presence of blood in urine. Many dogs with UTI strain and spend long time passing only small amount of urine. Treatment depends on the cause of UTI. Most common cause is bacterial infection which should be treated with antibiotics and sometimes pain killers. It is always recommended to test a urine sample before starting treatment to rule out more serious conditions which may look similar to UTI. if your dog is straining but is unable to pass any urine at all you should treat this as emergency. This could be a sign of urethral blockage (usually from a stone) which is very dangerous.
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