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Why is my dog reverse sneezing after dental surgery at night?

Updated On September 23rd, 2025

Pet's info: Dog | Miniature Poodle | Male | neutered | 8 years and 10 months old | 11.3 lbs

Hello it has been 3 days after my dog had dental surgery. After he woke up from anesthesia we noticed that every now and then when he’s sleeping, he’ll wake up suddenly and start hyperventilating/reverse sneezing for a minute then go back to sleep. He is awake when hyperventilatilating/reverse sneezing but it never happens during the day, only at night when he’s asleep.

1 Answer

Most Helpful Answer

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Answered By Kevin Sanada, DVM

Veterinarian

Published on August 19th, 2018

The upper teeth have roots that extend very closely to the nasal passages and if Custard had any teeth removed, then it's possible that there could be some irritation, or bleeding in the nasal passages. This often heals soon after the surgery, but may take a week or two. If he didn't have any teeth removed, or his problem worsens over the next week, then it would be worthwhile to have your vet examine him. Signs of a worsening problem are an increase in sneezing, coughing and discharge from the nose. This can be a sign of infection, so it's possible that he will need additional treatment. Otherwise, it's best to monitor this condition for now and see if it improves in the next week. I hope that helps and all is well with Custard.

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