Dog licking their lips, gulping, swallowing repeatedly or bringing food back up after eating? Those signs can happen with acid reflux in dogs - but they can also point to other oesophageal, stomach or airway problems. The useful next step is not guessing. It is working out whether your dog is vomiting, regurgitating or showing another digestive sign and then discussing persistent symptoms with your vet.
Quick answer
Acid reflux in dogs is the backward movement of stomach contents into the oesophagus. Common signs can include lip licking, repeated swallowing, regurgitation, drooling, coughing, poor appetite or discomfort after eating. Treatment depends on the cause and may involve feeding changes plus vet-prescribed medication.
Persistent regurgitation, difficulty swallowing or breathing changes need veterinary assessment. Do not give human indigestion or reflux medication unless your veterinary team specifically advises it.
Acid reflux, vomiting, regurgitation or something else?
These patterns can overlap. Use this as a way to describe what you are seeing, not as a home diagnosis.
What is acid reflux in dogs?
Acid reflux, also called gastro-oesophageal reflux or gastroesophageal reflux, happens when stomach contents move backwards into the oesophagus - the tube that carries food from the mouth to the stomach.
The lower oesophageal sphincter normally helps keep stomach contents where they belong. If reflux repeatedly exposes the oesophagus to acidic or other gastric contents, the lining can become inflamed. Vets call this oesophagitis. Persistent clinically important reflux may be described as gastro-oesophageal reflux disease (GERD).
How can I tell if my dog might have acid reflux?
Dogs cannot describe heartburn, so owners often notice behaviours rather than one obvious symptom. Possible signs include:
- lip licking or smacking
- gulping or repeated swallowing
- drooling
- regurgitation, particularly around meals
- restlessness after eating or at night
- reduced appetite or food avoidance
- difficulty or discomfort swallowing
- coughing
- changes to the bark or voice
- weight loss in more persistent cases
These signs are not specific to reflux. Lip licking, for example, can also happen with nausea, dental pain, stress or other gastrointestinal disease.
Lip licking, gulping and repeated swallowing
This is a common owner search because it is easy to notice and difficult to interpret. Reflux or nausea can trigger repeated swallowing and lip licking, but the behaviour alone does not identify the cause. Look at the whole pattern: does it happen after meals, overnight, alongside regurgitation, coughing or appetite change?
Vomiting vs regurgitation: what is the difference?
These words are often used interchangeably, but they describe different processes and can lead your vet toward different diagnostic questions.
Vomiting is active
- Nausea may come first
- Drooling or lip licking can occur
- Retching and abdominal contractions are common
- Food may be partly digested
Regurgitation is usually passive
- Food or fluid may come back up suddenly
- Little or no abdominal heaving
- Food may look undigested
- Material can sometimes keep a tube-like shape
Repeated regurgitation deserves attention because causes can include reflux, hiatal hernia, oesophageal narrowing, foreign material, motility disorders and megaoesophagus. It also increases the risk of aspiration pneumonia. AKC’s veterinary explanation of vomiting vs regurgitation describes the same active-versus-passive distinction.
Aubenord practical tip
If you are not sure which one you are seeing, safely record a short video when it happens naturally. Do not make your dog eat, walk or move extra just to capture a clip.
Why does my dog have acid reflux?
There is no single universal cause. Possibilities include:
1. Lower oesophageal sphincter dysfunction
If the muscular barrier between the stomach and oesophagus does not close effectively, stomach contents can move upwards and irritate the oesophageal lining.
2. Hiatal hernia
A hiatal hernia occurs when part of the stomach moves abnormally through the opening in the diaphragm where the oesophagus passes into the abdomen. It can be congenital or acquired and may be associated with regurgitation, reflux and swallowing difficulty.
3. Brachycephalic anatomy and airway disease
French Bulldogs, Bulldogs, Pugs and other flat-faced breeds can have upper-airway obstruction associated with BOAS. Referral research has also documented gastro-oesophageal reflux, delayed oesophageal transit and hiatal hernia in brachycephalic dogs. In one referral study of 36 brachycephalic dogs presented for obstructive airway disease, 27 had gastro-oesophageal reflux and 16 had hiatal hernia; all 16 dogs with hiatal hernia were French Bulldogs. Read the study.
Evidence limit: these were referral patients already being investigated for airway disease. Those figures should not be generalised to every French Bulldog.
4. General anaesthesia
Gastro-oesophageal reflux is a recognised complication during general anaesthesia in dogs. It may occur without obvious visible regurgitation. If unusual swallowing, regurgitation or discomfort begins after an operation or anaesthetic, tell the veterinary team.
5. Repeated or severe vomiting
Repeated exposure of the oesophagus to stomach contents can inflame the lining. The underlying cause of vomiting still needs investigating.
What can look like acid reflux but be something else?
This is one of the most important sections on the page because reflux-like signs are not unique to GERD.
- Megaoesophagus: can cause passive regurgitation, difficulty swallowing and aspiration pneumonia.
- Oesophageal foreign body: bones, chews or other material can become lodged and cause regurgitation or swallowing distress.
- Oesophageal stricture: narrowing can make food difficult to pass.
- Gastritis or pancreatitis: can cause nausea, lip licking and vomiting rather than primary oesophageal reflux.
- Dental or oral pain: can cause lip licking, food reluctance or unusual swallowing.
- Gastric dilatation-volvulus (bloat): repeated unproductive retching, abdominal enlargement or collapse is an emergency and should never be treated as simple reflux.
What should I feed a dog with acid reflux?
There is no single “acid reflux diet” for every dog. Veterinary plans often use feeding strategy rather than one magic ingredient.
Depending on the diagnosis, your vet may recommend smaller, more frequent meals, a lower-fat diet, or softer food if the oesophagus is sore. The goal is to reduce irritation and match the dog’s wider nutritional needs.
Do not assume raised bowls treat reflux. Bowl height should be chosen for the individual dog and any swallowing, neck or mobility needs. If your dog has a diagnosed oesophageal motility problem, your veterinary team may give very specific feeding-position advice.
What can make reflux symptoms worse?
The answer depends on the underlying condition, but symptoms may be harder to control when:
- meals are very large
- a diet is high in fat for a dog whose vet is trying to improve gastric emptying
- the dog has repeated vomiting
- an underlying hiatal hernia or airway problem is not addressed
- medication is changed or stopped without veterinary guidance
- persistent regurgitation is normalised instead of investigated
How do vets diagnose acid reflux in dogs?
There is no reliable home test. Diagnosis starts with the pattern of signs and a veterinary examination. Depending on the dog, investigations may include blood tests, radiographs, ultrasound, contrast imaging or fluoroscopy, and sometimes endoscopy to inspect the oesophagus and stomach directly.
What your vet may ask you
- When did the episodes start?
- How often do they happen?
- Do they happen immediately after eating or several hours later?
- Is there retching or abdominal effort?
- Does the material look digested or undigested?
- Is your dog coughing afterwards?
- Has appetite or weight changed?
- Has your dog recently had anaesthesia or surgery?
- Does your dog have noisy breathing or diagnosed BOAS?
A simple symptom log
For each episode, record time → food/treats → vomiting or regurgitation → cough/breathing change → appetite → medication. A short pattern log can be more useful than trying to remember everything at the appointment.
How is acid reflux in dogs treated?
Treatment depends on the cause. Lowering stomach acidity does not necessarily stop the physical act of reflux; it may make the refluxate less damaging to an inflamed oesophagus. That is why vets often combine different strategies.
Reduce stomach acidity
Veterinarians may prescribe an acid-suppressing medicine such as a proton-pump inhibitor when appropriate. The drug, dose, timing and duration should come from the veterinary team.
Protect an irritated oesophagus
When oesophagitis or ulceration is a concern, a vet may prescribe a medicine such as sucralfate to help protect damaged tissue.
Improve gastrointestinal movement where appropriate
Some dogs may be prescribed a prokinetic medicine to support gastric emptying or gastrointestinal movement. These are prescription medicines and are not suitable for every dog.
Medication image for illustration only. Aubenord is not recommending a specific product or dose; reflux medication should be prescribed for the individual dog.
Treat the underlying cause
If reflux is secondary to a significant hiatal hernia, BOAS or another structural problem, medication alone may not solve it. Some dogs need specialist investigation or surgery.
Can you treat dog acid reflux naturally?
Some non-drug management changes - such as meal size, meal frequency and diet composition - may form part of a veterinary treatment plan. But “natural remedies” should not be used as a substitute for diagnosing persistent reflux or regurgitation.
We would not recommend experimenting with baking soda, herbal products, random supplements or prolonged fasting without veterinary guidance. “Natural” does not automatically mean safe, effective or suitable for your dog’s other conditions or medication.
What can I safely do at home?
- Record the episode. Note timing and whether it looked like vomiting or passive regurgitation.
- Take a short video if it happens naturally.
- Keep a food-and-symptom diary.
- Follow any prescribed diet and medication consistently.
- Ask before changing meal frequency, fat content or bowl position.
- Do not give human antacids or reflux medicines unless your vet tells you to.
- Do not deliberately fast your dog unless your veterinary team has instructed you to.
When to call a vet
When should I call the vet?
Contact your veterinary practice if your dog has persistent or recurrent regurgitation, difficulty swallowing, refuses food, appears painful or is losing weight.
Seek more urgent assessment if there is:
- repeated inability to keep food or water down
- blood in vomit or regurgitated material
- marked weakness or collapse
- breathing difficulty
- significant coughing after regurgitation
- rapidly worsening symptoms
- repeated unproductive retching or a swollen abdomen
If your dog also has IVDD
Acid reflux is not a defining feature of IVDD itself. But dogs with IVDD may undergo anaesthesia for MRI or surgery, receive several medicines, become less active during recovery or develop an unrelated gastrointestinal problem at the same time.
If an IVDD dog develops new regurgitation, repeated swallowing, difficulty eating or another digestive change, treat it as a separate symptom worth discussing with your veterinary team.
Explore Aubenord’s IVDD Guide & Roadmap → · Find an IVDD specialist →
Breed-specific evidence
French Bulldogs, BOAS and acid reflux
French Bulldogs appear frequently in brachycephalic reflux research. One study of 51 brachycephalic referral dogs found abnormal acidic reflux measurements in 43 dogs. Again, this was a selected referral population and not a prevalence estimate for all French Bulldogs. Read the study.
If your French Bulldog has repeated regurgitation plus noisy or laboured breathing, poor exercise tolerance, sleep-related breathing difficulty or swallowing problems, ask your vet whether the airway and gastrointestinal signs should be considered together.
Frequently asked questions
Can dogs get heartburn?
Dogs cannot describe heartburn in the way people can, but acidic reflux can inflame the oesophagus and cause discomfort.
Why does my dog lick their lips and swallow repeatedly?
Nausea or reflux can cause lip licking and repeated swallowing, but dental pain, stress and other gastrointestinal conditions can look similar. The behaviour alone cannot diagnose GERD.
Can acid reflux make a dog cough?
Yes. Oesophageal irritation can be associated with coughing, and regurgitation also creates a risk that material enters the lungs.
How long does acid reflux last in dogs?
There is no single duration. A mild episode related to a temporary trigger may settle quickly, while oesophagitis, hiatal hernia or chronic reflux can require a longer treatment plan. Persistent or recurring signs need veterinary review.
Can dog acid reflux go away on its own?
Some brief episodes may resolve, but repeated regurgitation, painful swallowing, weight loss or coughing should not simply be watched indefinitely. The underlying cause matters.
Does feeding smaller meals help?
Smaller, more frequent meals are commonly used as part of veterinary reflux-management plans. Whether they are appropriate for your dog depends on the wider diagnosis and nutritional plan.
Should I give my dog omeprazole?
Not without veterinary advice. Omeprazole is used in veterinary medicine, but the reason for treatment, dose, timing and duration matter.
Are French Bulldogs more prone to reflux?
Reflux and oesophageal abnormalities are well documented in brachycephalic referral populations and French Bulldogs specifically. That supports a breed-level concern, but it does not mean every French Bulldog has GERD.
Trust & safety
Medical limitations & how this article is prepared
This guide explains common veterinary causes and management approaches for gastro-oesophageal reflux in dogs. It cannot confirm that a particular dog has GERD or distinguish reflux from vomiting, megaoesophagus, oesophageal obstruction, hiatal hernia, gastritis, pancreatitis or another condition.
Aubenord uses veterinary reference material and peer-reviewed canine research. Referral-hospital studies involving French Bulldogs and other brachycephalic dogs are identified as selected populations rather than treated as prevalence estimates for all dogs.
Prepared by the Aubenord Editorial Team. Updated 24 September 2026.
Editorial standards · Medical disclaimer · Corrections/contact
Evidence base
Sources & further reading
- MSD Veterinary Manual - Disorders of the Esophagus in Dogs
- MSD Veterinary Manual - Esophagitis in Small Animals
- American Kennel Club - Vomiting Versus Regurgitation in Dogs
- PetMD - Dog Regurgitation
- Journal of Veterinary Internal Medicine - Quantification of gastroesophageal regurgitation in brachycephalic dogs
- Journal of Small Animal Practice - Hiatal hernia and oesophageal abnormalities in brachycephalic dogs
- Journal of Veterinary Internal Medicine - Acidic reflux in French Bulldogs with sliding hiatal herniation
Evidence limitation: several brachycephalic studies involve referral patients already being investigated for airway or oesophageal disease. Their rates should not be generalised to every French Bulldog or brachycephalic dog.