Emergency care
What is bloat in dogs?
Bloat is one of the few dog health questions where minutes matter more than anything you read. This page explains the difference between a bloated stomach and a twisted one, which dogs carry the most risk, what the signs look like at home, what happens at the hospital, and how to arrange meals, play and an overnight stay around a dog from a high-risk breed.
The definition
Bloat is a stomach full of gas; GDV is the same stomach twisted on itself
VCA describes bloat as the early stage, when the stomach fills with gas, and volvulus as the next one, when the swollen stomach twists and blocks both its entrance and its exit. Some dogs stop at dilatation; many do not. Because the two look alike on a physical exam, VCA notes that X-rays or other tests are needed to tell whether the stomach has turned, so no owner can rule out a twist by looking at or feeling a dog's belly at home.
The twist is what makes GDV so dangerous. The Merck Veterinary Manual explains that a rotated stomach sets a dog up for shock, with weak pulses, a racing heart and pale gums, and that the swollen stomach can press on the chest and make breathing hard. VCA ranks GDV among the most serious conditions in dogs that do not involve an injury, and says it needs veterinary attention within minutes to a few hours.
Who is at risk
Large, deep-chested breeds carry most of the risk, and family history adds to it
Merck and VCA name an overlapping group of breeds, shown in the table, and Merck calls genetics a proven risk factor, including a deep, narrow chest and a parent, littermate or offspring that has had GDV. Risk also rises with age. Small dogs are not immune: VCA notes that any dog can bloat, including Dachshunds and Chihuahuas, so a retching, swollen-bellied small dog deserves the same urgency as a Great Dane.
Beyond breed, Merck lists a lean body condition, stress, an aggressive or fearful temperament, feeding once a day, a diet of dry kibble only and fast eating. VCA adds exercising after a large meal or after drinking a lot of water, and any illness that slows the gut. These are risk factors rather than causes, and a dog with none of them can still bloat, but several are things you can change at home starting with tonight's dinner.
| Breed | Named by |
|---|---|
| Great Dane | Merck and VCA |
| German Shepherd Dog | Merck |
| Standard Poodle | Merck and VCA |
| Weimaraner | Merck and VCA |
| Saint Bernard | Merck and VCA |
| Irish Setter and Gordon Setter | Merck and VCA |
| Basset Hound | Merck and VCA |
| Doberman Pinscher and Old English Sheepdog | VCA |
The signs
Retching that brings nothing up is the sign to act on, straight away
Merck lists non-productive retching, heavy drooling and restlessness as the typical signs, with a belly that swells quickly or over a few hours. VCA adds labored breathing, obvious distress and collapse or being unable to stand. A dog in early bloat may simply seem unsettled and unable to get comfortable, and many owners notice the retching before the swelling. Pale gums, weakness and a fast heartbeat are the signs of shock that Merck links to the twist.
Never wait to see whether bloat settles by itself. Merck lists signs present for more than six hours before the exam among the factors linked to death after GDV, so the drive starts the moment you suspect it. Go to the nearest emergency hospital rather than waiting for your regular clinic to open. Massachusetts Veterinary Referral Hospital in Woburn is open 24 hours, and the City of Gloucester publishes a list of local and emergency veterinary offices; call ahead from the car so the team is ready.
- Retching or trying to vomit with nothing coming up
- Drooling far more than usual
- Restless, pacing, unable to settle
- A belly that looks fuller or tighter than it should
- Pale gums, weakness or collapse: shock
At the hospital
At the hospital the team relieves the pressure, treats shock and usually operates
VCA sets out the usual order. The first job is to let gas out of the stomach, with a tube passed down the throat or, if the stomach has turned, a needle placed through the skin. Shock is treated with intravenous fluids and emergency medication. Once the dog is stable enough for anesthesia, a surgeon returns the stomach to its normal position, removes any tissue that has died and, if the spleen is damaged, may remove that as well.
The outcome depends on time and damage. VCA reports a mortality of 10 to 45 percent even in relatively uncomplicated cases, and Merck gives 20 to 45 percent in treated dogs. The usual surgery includes a gastropexy, which fixes the stomach to the body wall so it cannot twist again; VCA notes recurrence as high as 75 percent without one. Merck explains that a gastropexy still allows the stomach to fill with gas, so a dog that has had one still needs watching.
- Gas let out of the stomach by tube or needle
- Shock treated with intravenous fluids
- Surgery to return the stomach to its place
- A gastropexy so the stomach cannot twist again
Feeding and exercise
Smaller meals and quiet time around them are the everyday prevention
Prevention is mostly about how and when a dog eats. Merck recommends several small meals instead of one large one, limiting exercise before and after meals, reducing stress at mealtimes and avoiding elevated food bowls. Your vet is the right person to say how long your own dog should rest around a meal. For a high-risk breed, ask too whether a preventive gastropexy makes sense; Merck notes that many veterinary surgeons recommend it, and it can be done during a spay or neuter.
Share the plan with everyone who feeds your dog, from a neighbor to a walker, because one big dinner followed by a game of fetch undoes the rest. VCA notes that a dog with a first-degree relative that developed GDV should not be bred, which is worth knowing if you are choosing a puppy from a large breed: ask the breeder plainly about bloat in the parents and the littermates of earlier litters.
- 01
Split the daily ration into at least two meals, served at the same times each day.
- 02
Slow a fast eater with a puzzle feeder or by spreading the kibble over a mat.
- 03
Feed each dog apart from the others, so nobody gulps to guard the bowl.
- 04
Keep the bowl at floor level unless your vet advises otherwise for a medical reason.
- 05
Plan walks and play well clear of meals, on the timing your vet suggests.
- 06
Ask your vet about a preventive gastropexy if your dog is a high-risk breed.
- 07
Save the route to the nearest 24-hour emergency hospital in your phone today.
Overnight stays
Before an overnight stay, hand over the feeding plan along with the food
For an overnight stay at Dogtown you bring your dog's food, pre-portioned, which also lets you set the size of each meal. Tell the front desk your dog's breed, any bloat history or gastropexy, its usual meal times and that you want hard play kept away from meals, and ask how meals and playgroup times are arranged for your dog; we confirm those details when you book rather than printing one rule here. The overnight stays page describes the suites, $78 a night, and the bundles.
Food-based extras count too. The Dogtown Deluxe bundle includes a stuffed Kong or Toppl, and a frozen Kong or homemade pupsicle add-on is $6, so mention a deep-chested breed before adding them. Leave your vet's details and how to reach you at drop-off, and ask the front desk what happens if a guest needs emergency care during a stay. On Sundays, overnight guests come and go between 8 and 10 AM or 4 and 6 PM, and the Pup Van runs for $10 each way in Rockport, Gloucester, Essex and Manchester-by-the-Sea.
At Dogtown
Stays planned around your dog's meals
Overnight suites with daycare playgroups by day. Bring pre-portioned food and tell us your dog's feeding plan.
Asked and answered
Questions people ask about this
Short, complete answers you can act on today. More in the full FAQ.
Can small dogs get bloat?
How quickly does bloat become fatal?
Does a raised food bowl prevent bloat?
If my dog has had a gastropexy, can it still bloat?
More questions? Read the full FAQ
Sources
- VCA Animal Hospitals: gastric dilatation and volvulus in dogs
- Merck Veterinary Manual: gastric dilation and volvulus
- VCA Animal Hospitals: arthritis in dogs
- Massachusetts Veterinary Referral Hospital
- City of Gloucester: local emergency veterinary offices
Rules and dates change. We re-check every beach, licensing and ordinance page each spring and fall; the source above is the current word.
Keep reading
Next step
Planning a stay for a deep-chested dog?
Start with the free evaluation on a weekday between 6:30 and 9:30 AM, and bring your dog's feeding plan with you.
- 01Free evaluationWeekdays 6:30 – 9:30 AM
- 02Book a dayOnline, in the app or by phone
- 03Play, rest, repeatReport card at pick-up
