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Why is my puppy lethargic with diarrhea and dark urine? Is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Spitz | Male | 4 months and 8 days old

My dog is suffering from dirreah last 10 day some time he is better some time he is doing very loose now happen this that sudden change in behaviour very lazzy looking verry week and dark urination thick sliva i dont know whats going i am in worry how he will get fine spitz breed 4 months

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on December 1st, 2018

I would recommend that you have Snappy examined by the vet as soon as possible. The lethargy and dark urine indicate significant dehydration. Chronic diarrhea in a puppy could be caused by intestinal parasites or food intolerance. The sudden change in behavior could just be due to dehydration or it could be an infection, such as a bacteria or virus like Parvovirus. The vet will do an examination and may recommend testing for Parvo and/or intestinal parasites.

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