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Why does my dog vomit yellow liquid and foam from an empty stomach?

Updated On September 23rd, 2025

Pet's info: Dog | French Bulldog | Male | unneutered | 1 year and 9 months old | 40 lbs

Hello. I have a 2-year French Bulldog - Male - Every morning Onyx wakes up, licks his lips and vomits yellow sticky jelly liquid and white foam. He eats twice a day, Last night he ate at 11:30 at night and was sick at 7am. No change in character, poos are good, no diharrea,

1 Answer

Most Helpful Answer

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Answered By C. Rathjens, DVM

Veterinarian

Published on November 14th, 2017

Poor Onyx, and you! That's a lot of mess to clean up each morning and I'm sure he doesn't enjoy it either. Some dogs vomit if their stomach is empty too long. This is called bilious vomiting. 11:30pm to 7am is NOT generally too long, but Onyx may be a bit more sensitive than the average dog. I would recommend setting an alarm to feed him a bit earlier (maybe 5am) for a few days and see if that makes a difference. If not, then it's time for a trip to his veterinarian to get checked out. Good luck!

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