Petco Text Logo
Petco Pet Logo

My dog has no energy, a fever, and won't eat. What should I do?

Updated On September 23rd, 2025

Pet's info: Dog | Great Dane | Male | 7 years and 7 months old | 160 lbs

My dog havé no energy today. 39.4rectal température 24 breath minutes hé star on the couch hé dont touch hes meal but hé drink à little bit

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on August 18th, 2018

Poor Cobalt! It sounds like he is lethargic, and he does have a slight fever. Unfortunately these are very general signs of illness, and could be caused by systemic illness, infection, or inflammation. I would keep an eye on him for now, and if the fever goes above 39.5, he stops eating, he continues to be lethargic, or he develops other signs such as vomiting, take him into a vet immediately. I hope this helps!

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored