Reasons for blood in a dog's urine

Written by autumn glenister
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Reasons for blood in a dog's urine
Blood in a dog's urine could be a symptom of an infection. (Jupiterimages/Photos.com/Getty Images)

Noticing blood in a dog's urine is likely to cause worry in its owner, but there are some relatively minor causes for such a symptom that a vet can remedy. Knowing some of the reasons dogs can suffer from bloody urine will help you to narrow down what is the likely cause of your pet's illness, but a trip to the vet may be in order to verify the reason behind its symptoms.

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Urinary Tract Infection

Just like humans, dogs can suffer from infections in the urinary tract, which sometimes lead to blood being present in the urine. Bacteria travel up the urethra, which is the tube through which urine exits the body, and infect the bladder. In some cases, the infection spreads to the kidneys. A urinary tract infection may not be serious and could resolve by itself, but if it does not it can worsen and lead to uncomfortable symptoms such as blood in the urine, urination in inappropriate places, the dog straining to urinate and a foul smell from the urine.

Stones

Another possible cause for blood in the urine of dogs is stones in the kidney or bladder. These stones are formed out of the natural minerals that occur in the urine, which have crystallised to form a hard rock. The symptoms of a bladder stone include blood in the urine and more frequent urination, with the dog passing only very small amounts of urine each time. Kidney stones can also cause blood in the urine and, if the stones begin to move out of the kidney and toward the bladder, abdominal pain and straining during urination.

Poisoning or Injury

Some of the causes of blood in the urine may be external events such as the dog being in an accident that has led to internal bleeding or eating rat poison. The anticoagulant medication Warfarin sometimes is used to poison rats, but if a dog eats these pellets it could suffer from internal bleeding and start losing blood in its urine. It is important to get a dog to a vet if poisoning is a possibility because the results could be fatal.

When to See a Vet

In all cases in which a dog has blood in its urine, it is advisable to see a vet and have the cause of the problem verified. There are some less common problems that could lead to your dog's illness, including serious issues such as cancer that a professional needs to check for when examining your pet.

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