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Puppy is leaking urine.

Species: Dog
Breed: bullmastiff
Age: 3-6 months
Im concerned about my puppy frequent and what seems to be lack of urin control. The dog daycare i've taken her too has mentioned it many times and i chalked it up to young age but now im more concerned. Yesterday she got up to run and play and the urine just ran out. She has also peed laying down. Her urine does not smell strong or appear dark in color. She seems totally unable to control it also is this something common to bullmastiffs. Thankyou


Online vet, Dr. Marie

Dr. Marie replied:

There are a few things that can cause a puppy to not be able to hold her pee like you have described.

She may have an ectopic ureter. I drew a picture to help explain what an ectopic ureter is:

ectopic ureter picture

The normal side is labelled as Kidney #1. The ureter is the tube that takes urine from the kidney to the bladder. Note how on the side of Kidney #1 the ureter empties into the bladder.

But, on Kidney #2, the ureter goes past the bladder and empties into the vagina. If this happens the vagina can't hold urine like the bladder can and so it empties out which results in a dog that leaks urine.

The way that a vet tests for an ectopic ureter is by doing an xray using medication that is injected that allows them to see urine pass from the kidneys, through the ureters and then see where it goes.

Some dogs with an ectopic ureter can be fixed with surgery.

It is also possible that she has a medical problem such as a urinary tract infection or crystals in her urine. Both of these cause inflammation that makes her feel like she has to pee all the time. Your vet can determine this with a urine test.

I hope she is ok!

Dr. Marie.

---This question was asked in our Ask A Vet For Free section.---


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Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.

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Dr. MarieDr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.

Is an online vet visit just as good as a trip to your veterinarian? No! But, many times, asking an online veterinarian a question can help save you money. While Dr. Marie can't officially diagnose your pet or prescribe medications, she can often advise you on whether a vet visit is necessary. You can also ask Dr. Marie for a second opinion on your pet's condition.