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My dog is suddenly skinny and won't eat or drink. What's wrong?

Updated On September 23rd, 2025

My dog isnt eating or drinking at all and is super skinny. She just got skinny over night and i dont know what is going on with her. Do you think you could help me to figure out the problem?

1 Answer

Most Helpful Answer

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Answered By Ann Dion, DVM

Veterinarian

Published on July 17th, 2018

Hello and welcome to Petco Pet Education Center, formerly Petcoach. Dogs that are not eating and drinking and look very thin and suddenly very thin are very sick. The biggest concern would be a 'foreign body'- a sock/underwear/toy that is stuck in the gut, preventing any food from being taken in and absorbed. Other concerns would be severe gastritis, a high worm burden (parasite infection), cancer in the gut, lack of enzyme production in the pancrease, and some other causes. I recommend getting your girl to a vet right away however, as it sounds like she is very sick. Best of luck with her!

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