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Why is my 11-week-old puppy not eating, throwing up, losing weight?

Updated On September 23rd, 2025

Pet's info: Dog | Pit Bull Terrier | Male | unneutered | 11 lbs

But the past two-and-a-half 3 weeks the dog has not eaten throwing up lost a bunch of weight I don't know what's wrong he's 11 weeks old

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1 Answer

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Answered By Ana M, DVM

Veterinarian

Published on March 10th, 2019

Thank you for submitting your question regarding Blacky. I recommend seeking veterinary care for him as soon as possible. Several weeks is way too long for a puppy to go without proper nutrition. Based on his exam findings, fecal testing will be recommended to look for any intestinal parasites or other intestinal infections. Based on these results, either treatment can be recommended or further testing if necessary. He may require deworming medication, antibiotics and fluids to rehydrate him. I hope this information helps!

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