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My dog is lethargic and has no appetite after her heat. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 6 years old | 45 lbs

I dog just finished being in heat and traveling for the the holidays .. now she’s very lethargic and doesn’t seem to have much of a appetite . What might be wrong with her ???

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1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on January 4th, 2019

I hate to hear that Lexi is not feeling well. Any time an intact female dog does not feel good after finishing her heat cycle, there is always a concern for a serious uterine infection called a pyometra. This condition can be fatal if not treated. That being said, there are many things that can cause any dog not to feel well...eating something they shouldn’t have, a viral infection, etc. Due to the timing however, I recommend to have Lexi seen by the veterinarian tonight if possible. If she can’t get in tonight, get her in tomorrow morning. Hopefully it’s not a pyometra but if it is, treating it earlier has a better prognosis. Tonight offer her a bland diet of 25% boiled white meat chicken and 75% boiled white rice. You can add some additional warm water to help with hydration. This will help to get calories in her and may be more appealing than her normal dog food. I hope this helps to point you in the right direction and please feel free to post any further questions.

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