Dog bloat: the signs and what to do right now
Bloat is a dog's stomach swelling with gas, food or fluid, and in GDV it also twists. Signs include retching with nothing coming up, a swollen or tight belly, pacing, drooling and pale gums. There is no home treatment. Call the nearest open vet and drive there now. With treatment, Cornell puts survival above 80 percent.
Written by Justin Alcalde, AHA and American Red Cross instructor, CPR West Covina · Reviewed
Read the video transcript
How to help a dog with bloat. Step 1. Retching, nothing comes up, tight belly: think bloat. Step 2. No gas medicine, no food or water, no waiting. Step 3. Call the nearest open vet and drive there now.
- Retching, nothing comes up, tight belly: think bloat.
- No gas medicine, no food or water, no waiting.
- Call the nearest open vet and drive there now.
What are the signs and symptoms of bloat in dogs?
Bloat tends to come on suddenly, often but not always after a big meal.
| Sign | How it shows up |
|---|---|
| Retching with nothing coming up | Heaving or trying to vomit again and again, bringing up nothing or only thick saliva |
| A swollen or tight belly | Fuller than normal, often most on the left just behind the ribs, and firm to the touch |
| Restlessness and pacing | Cannot lie down or settle, gets up and down, looks anxious |
| Drooling | Far more saliva than usual |
| Looking at or guarding the belly | Turning to stare at its side, standing and stretching, or front end down with the rear up |
| Pale gums | Pale instead of their usual pink |
| Panting, weakness or collapse | Harder breathing, then trouble standing as shock sets in |
Signs per the American College of Veterinary Surgeons (ACVS), Cornell, VCA, the Merck Veterinary Manual and the Red Cross.
ACVS says panting, weakness and collapse tend to come later, as GDV progresses. Go at the early signs.
What do I do if I think my dog has bloat?
Bloat needs a vet, and GDV needs surgery, so the first aid here is getting your dog to a vet without delay.
Call the nearest open vet
At night or on weekends, that is often a 24 hour ER.
Say you think it is bloat
Describe the signs and when they started so the team can prepare.
Nothing by mouth
No food, no water, no treats, unless the vet tells you otherwise.
No gas medicine, no waiting
Skip home remedies and do not wait to see if one works.
Move your dog gently
Keep it calm and still, and support its body into the car.
Drive there now
Go straight there, with a passenger watching your dog if you can.
The RECOVER First Aid Guidelines 2026 do not name bloat, but their general first aid chart sends nearly every worry to one place: the nearest open veterinary clinic.
Look up which animal ER near you is open overnight and add it to your pet first aid kit card. For the emergencies you can treat on the spot, PetAid, the free iPhone app we built, keeps the steps on your phone.
Is there a home remedy that relieves dog bloat fast?
No. PetMD says plainly there are no home remedies for bloat in dogs. A swollen, twisted stomach can cut off its own blood supply and press on the veins returning blood to the heart, which can lead to shock.
Gas medicine: no. The VCA drug guide says not to give simethicone, the ingredient in Gas-X, when severe bloat or GDV is suspected. Waiting to see whether it helps only costs time.
Making your dog vomit: no. Preventive Vet says never to try it unless a vet or ER has told you to. In GDV the twist can block both ends of the stomach, VCA explains, and RECOVER 2026 cites reports of significant gut injury from hydrogen peroxide, the usual home method.
Food, water, or letting the gas out yourself: no. Garden State Veterinary Specialists, an emergency group, advises nothing by mouth unless a vet says so and warns that home attempts to relieve bloating could make it worse.
Is it bloat, or is my dog just gassy or fat?
Simple bloat is a stomach stretched with gas, food or fluid. In GDV it has also twisted. VCA notes the two often look identical on an exam, so treat any bloat signs as an emergency.
| Type | Cause | Clues at home | What to do |
|---|---|---|---|
| Ordinary gas | Swallowed air, or food breaking down in the gut | Passing gas, but no retching, swelling or distress | Usually not urgent. See your vet if weight loss or diarrhea come with it |
| Food bloat | A huge meal, such as a raid on the food bin, stretches the stomach | Round, firm belly, restlessness, retching, often an open bag nearby | Call a vet now. It can need treatment and can progress to GDV |
| GDV | The swollen stomach twists, trapping gas and cutting off blood flow | Retching with nothing coming up, tight belly, pacing, drooling, pale gums | Nearest open vet or ER now |
Gas per VCA. Food bloat per Preventive Vet. GDV per ACVS and the Merck Veterinary Manual.
A heavy dog's belly fills out over weeks while the dog acts normally. Bloat comes on suddenly, usually with retching, pacing or drooling.
Raw yeast dough is a separate danger. The yeast keeps working in the warm stomach, swelling the dough and making alcohol, and Merck says it may also trigger GDV in prone breeds. Our foods toxic to dogs list covers it.
How quickly does bloat get dangerous?
There is no set timeline. ACVS describes GDV as rapidly progressive and needing immediate medical attention, and it can become life threatening within hours. Both ACVS and the Merck Veterinary Manual link signs lasting more than 6 hours before a vet exam with a higher death rate.
Can dogs survive bloat?
Yes, many do. Cornell's veterinary college puts survival above 80 percent with medical and surgical treatment, and says the outlook depends on how sick the dog is and how soon it reaches care.
Reported numbers vary between sources. ACVS cites a death rate of about 15 percent, while the Merck Veterinary Manual gives 20 to 45 percent for dogs that are treated.
Get to the vet now if
Your dog retches with nothing coming up, its belly looks swollen or feels tight, it paces and cannot settle, or its gums look pale. Go even if it has had a gastropexy, and even in the middle of the night.
What causes bloat, and which dogs are at risk?
No single cause is known, Cornell says. These factors have been linked with a higher risk.
| Risk factor | What the sources say |
|---|---|
| Deep-chested breeds, mostly large or giant | Merck and VCA name Great Danes, Saint Bernards, Weimaraners, Irish and Gordon setters, standard poodles, German shepherds, Dobermans and basset hounds |
| Older age | Risk rose with age in a Purdue University study of large and giant dogs |
| A close relative who had GDV | A parent, sibling or offspring with GDV raised the risk in the same study |
| Eating fast | Faster eaters had a higher risk in the Purdue study |
| One large meal a day | Listed by ACVS, Merck and Cornell, though a 2026 study did not confirm it |
| Anxious or fearful temperament | Listed by Merck, VCA and Cornell, though the same 2026 study did not confirm it |
| Lean body, male, over 40 kg (about 88 lb) | Each linked with higher odds in the 2026 study. Merck also lists a lean body |
The 2026 study compared 170 dogs with GDV and 374 without, drawn from more than 47,000 US dogs in the Dog Aging Project. Poodles and poodle mixes had higher odds too.
How can I help prevent bloat in my dog?
The Red Cross says there is no foolproof way to prevent bloat. These habits may lower the odds.
Feed two or more smaller meals a day instead of one big one. Slow a fast eater with a puzzle feeder, as Washington State University's vet hospital suggests. Keep exercise light around meals, avoid big gulps of water at once, and store kibble where your dog cannot raid it.
Do raised food bowls cause bloat or prevent it?
Raised bowls were once commonly recommended, PetMD notes. But a Purdue University study of 1,637 large and giant dogs found that dogs fed from a raised bowl were about twice as likely to develop GDV.
The evidence is not settled. A later online survey of more than 2,500 dog owners found no clear link. A 2017 review of both studies found no evidence that raised bowls lower the risk, and called floor feeding the safest advice for at-risk dogs.
Cornell, Merck, Washington State and PetMD now advise against raised bowls. If your dog needs one for a health reason, ask your vet.
Should my dog have a preventive gastropexy?
Ask your vet if your dog is a high-risk breed. A gastropexy tacks the stomach to the belly wall so it is much less likely to twist. Many vet surgeons recommend it for at-risk breeds, often during the spay or neuter. ACVS notes the keyhole version is done through 2 or 3 small incisions.
Without one, ACVS says GDV can occur in 1 out of every 5 at-risk dogs. The surgery greatly lowers the risk of the twist, the life-threatening part, but does not stop the stomach from bloating, per Merck and Cornell.
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Get PetAidQuestions people ask
My dog's belly does not look swollen. Could it still be bloat?
Yes. Merck says belly swelling may be noted, not that it always is, and VCA describes it becoming obvious late, once a dog collapses onto its side. Retching with nothing coming up, drooling and restlessness are reason enough to go.
Can small dogs get bloat?
Yes, though it mostly affects large and giant breeds. VCA notes that any dog can bloat, even dachshunds and chihuahuas, and that older small dogs occasionally bloat, usually without the twist.
My dog had GDV surgery before. Can it happen again?
Cornell reports that the chance of it coming back can be as low as 3 to 5 percent after a gastropexy, and as high as 80 percent without one. ACVS and Cornell describe a gastropexy as part of GDV surgery, but check your dog's records to be sure.
What happens at the emergency hospital?
Per the Red Cross, expect fluids, an x-ray to check for a twist and release of the trapped gas. If the stomach has turned, surgery follows once your dog is stable. PetMD says dogs typically stay 2 to 4 days after surgery.
More pet first aid
- Toxic foodsChocolate by weight, grapes, xylitol.
- CPRNot breathing, not responding. 30 and 2, 100 to 120 a minute.
- Pet first aid kitHome and trail checklists, and both poison line numbers.
- Heat strokeAbove 104 F: cool running water, then the vet.
- All dog first aidNormal vitals and every emergency guide.
- Pet first aid, all petsPick your pet.
This is first aid, not veterinary care. Get to a vet or an emergency animal hospital as soon as the steps are done.
Sources
- RECOVER First Aid Guidelines 2026, Mandell et al., Journal of Veterinary Emergency and Critical Care
- American College of Veterinary Surgeons, gastric dilatation-volvulus
- American College of Veterinary Surgeons, prophylactic gastropexy
- Merck Veterinary Manual, gastric dilation and volvulus in small animals
- Merck Veterinary Manual, bread dough toxicosis in animals
- Cornell University College of Veterinary Medicine, gastric dilatation volvulus (GDV) or bloat
- Washington State University Veterinary Teaching Hospital, GDV and bloat in dogs
- VCA Animal Hospitals, bloat in dogs
- VCA Animal Hospitals, simethicone
- VCA Animal Hospitals, dogs and gas
- American Red Cross, dog bloat and torsion
- Glickman et al. 2000, non-dietary risk factors for GDV in large and giant breed dogs, JAVMA
- Buckley 2017, raised feeders and GDV risk, Veterinary Evidence
- McCord et al. 2026, GDV in the Dog Aging Project cohort, JAVMA
- PetMD, gastric dilatation-volvulus in dogs
- PetMD, bloat in dogs
- Preventive Vet, food bloat in dogs
- Garden State Veterinary Specialists, GDV in dogs