Is your French Bulldog throwing up? Learn the difference between vomiting and regurgitation, why it is common in this breed, and when to call the vet.
Vomiting or regurgitation?
The Merck Veterinary Manual defines vomiting as "the forceful ejection of the contents ... of the stomach and upper small intestine." Regurgitation is different: it "is a passive motion that does not require effort or contraction of the abdominal muscles." Regurgitated food "tends to be undigested and may have a cylindrical shape," and coughing or difficulty breathing "are more often associated with regurgitation than with vomiting."[1]
| Vomiting | Regurgitation | |
|---|---|---|
| Effort | Heaving, belly contractions | Little or none, food just comes up |
| Timing | Any time after eating | Often soon after eating or drinking |
| What comes up | Partly digested food, liquid, bile | Undigested food, often tube-shaped |
Tell your vet which one you saw. A short phone video is very helpful.
Why Frenchies bring food back up
The University of Cambridge lists gastrointestinal signs among the recognized features of BOAS.[2] When a dog has to work hard to breathe in, the pressure changes in the chest can pull stomach contents up toward the throat. That is why many Frenchies with noisy breathing also gag, regurgitate or bring up foam, especially after eating, excitement or exercise.
Other common causes include eating too fast, eating something unusual (garbage, grass, toys), sudden diet changes, food intolerance, infections and parasites.
When to call the vet
Merck says vomiting that is long-term, happens "more often than once or twice daily," or comes with "blood, abdominal pain, depression, dehydration, weakness, fever, weight loss, or other signs requires a more detailed examination."[1] Also call if:
- Your dog is a young puppy, a senior, or has another illness
- Vomiting and diarrhea happen together
- Your dog will not eat or drink
- You suspect your dog swallowed a toy, sock, bone or toxin
- Regurgitation happens regularly, even if your dog seems well
Emergency signs
- Bloat: a swollen, tight belly with retching that brings nothing up. Merck calls bloat "a life-threatening emergency."[3]
- Possible blockage: repeated vomiting with lethargy and loss of appetite. Merck warns an obstructed dog "may be unable to stop vomiting, which can lead to life-threatening consequences."[3]
- Sudden bloody vomiting or diarrhea, which can quickly lead to dehydration and shock.[3]
- Breathing trouble after vomiting or regurgitating. Inhaled food can cause aspiration pneumonia.
What you can do at home
For a single episode in an otherwise bright, healthy adult dog:
- Offer small amounts of water often, rather than a full bowl at once.
- Ask your vet before withholding food or giving any human medicine. Many human stomach remedies are unsafe for dogs.
- When your vet agrees, return to food with small, bland meals.
- Watch closely and write down what came up and when.
Preventing repeat episodes
- Feed smaller meals more often.
- Use a slow-feeder bowl if your dog gulps food.
- Keep your dog calm for 30 to 60 minutes after meals.
- Make diet changes gradually over about a week.
- Keep your dog lean, which also helps breathing.
- If regurgitation is frequent, ask your vet about a BOAS assessment. Treating the airway often reduces digestive symptoms too.
Related French Bulldog guides
- French Bulldog Diarrhea: Causes, Home Care and When to Worry
- French Bulldog Snoring and Noisy Breathing: When to Worry
Sources and references
- Webb CB. Vomiting in Dogs [Internet]. Merck Veterinary Manual (Dog Owners version); 2018 May [updated 2024 Sep; cited 2026 Nov 3].
- University of Cambridge, Department of Veterinary Medicine. Recognition & Diagnosis [Internet]. Cambridge BOAS Research Group; [date unknown] [cited 2026 Nov 3].
- Defarges A, Blois S, Hall EJ, Gibson TWG, Mitchell KD. Disorders of the Stomach and Intestines in Dogs [Internet]. Merck Veterinary Manual (Dog Owners version); 2018 May [updated 2026 Jun; cited 2026 Nov 3].
Last reviewed November 3, 2026. Educational information only. This guide does not replace advice from your veterinarian.