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Why is my dog drinking excessively, not eating, and having trouble walking?

Updated On September 23rd, 2025

My dog has been sick for three weeks. He went from going for walks everyday to now having trouble walking and laying down etc. He also has been drinking tons and tons of water and pees a lot. His appetite also decreased and he now will not eat his dog food. We have taken him to the vet 4 times and they can't figure out what's going on. They put him on keflex and then gave him arthritis medication. His white blood count is up and he is going for an ultrasound next week. Any idea what's going on?

1 Answer

Most Helpful Answer

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Answered By Lauren Jones VMD

Veterinarian

Published on March 23rd, 2017

Poor guy! He certainly sounds sick. Drinking and urinating excessively can be due to underlying disease like diabetes, kidney disease (chronic or acute due to infection), or Cushing's disease. The fact that he is also having more trouble walking around is concerning for arthritis (chronic osteoarthritis or acute immune-mediated conditions) as well as tick borne diseases, such as lyme disease. Lyme disease can also affect the kidneys. If your dog has not yet had some blood testing to rule out diabetes and kidney disease, consider discussing this with your vet. Depending on your location, leptospirosis and tick borne diseases can also be of concern, so also discuss this with your vet to determine if testing for infectious diseases is warranted.

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