My puppy is lethargic and won't eat. Could it be heat exhaustion?

Question

6 mo puppy vomit x3 last week, 1 episode reverse coughing. No behavior/appetite changes, told to monitor as it was 80-90 deg outside and puppies do not do well in heat. Yesterday walk 20 min in evening to limit heat exposure. Did not eat dinner till 2 hr after when he barked for meal. Today he refused breakfast, drank minimal water and has been in crate sleeping most of day. Are the symptoms heat related as vomit/reverse sneeze never reoccurred and today is only day refuse meal/sleep? Pet's info: Dog | Bichon Frise | Male | neutered | 6 months and 1 day old | 7.8 lbs

Rodrigo Roca, DVM · Accepted Answer

Hello, sorry to hear about Guido. These are very vague and non-specific signs and are commonly seen in multiple scenarios. Most often, pups may have changes in their environment such as excessive heat which may make them more groggy but other times, pups may have a dietary indiscretion that could make them be lethargic. Both of these are often self limiting and not requiring your veterinarian to see them unless they develop persistent vomiting, diarrhea, more severe lethargy, or inappetence. More severe causes of this could include parasites, allergies, ingestion of foreign material, and infections with parasites. If these signs persist longer than 2-3 days, or if he develops vomiting, diarrhea, lethargy, or a decreased appetite then have him evaluated by a veterinarian. Hope this helps and best of luck.

My puppy is lethargic and won't eat. Could it be heat exhaustion?

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