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My 4-month puppy is lethargic and not eating. Is it an emergency?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 3 months and 18 days old | 30 lbs

4 month old puppy exhibiting behavior that is very unlike him. Lethargic, not eating or drinking water for the last 3.5 hours, had had minimal appetite all day.. Bowel movements have been normal. He pooped 3x today. His breathing sounds like he has a a bit of a cold- but he also snores when he sleeps and that is common for him. Should we take him to ER or wait until tomorrow to assess? Could his belly be bothering him? We would appreciate any guidance. Thank you. Edye and Chris

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on March 6th, 2017

Oh no, I'm sorry Ziggy isn't doing well at all Edye and Chris! Based on the symptoms you have described, I wouldn't rush him into the ER vet tonight. It can be worrying that he has had minimal appetite today and is lethargic, but not eating or drinking for 3.5 hours isn't concerning just yet. You are correct that it could be his belly upsetting him, and I would monitor him overnight. Should he still not be eating or drinking in the morning, or if he is still lethargic, then I would take Ziggy into the vet. Over the night, if he starts vomiting, having diarrhea, or becomes very lethargic, then yes I would take him into an ER vet. Hopefully he just has an upset stomach and will feel better in the morning. You can try offering him some boiled white meat chicken (no bones) and white rice in small amounts to see if that tempts him to eat. I hope this helps and Ziggy feels better soon!

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