He’d been fine at teatime. Now it’s half nine and he’s pacing, won’t settle, keeps trying to be sick and bringing nothing up. His belly looks bigger than it did. He’s drooling.
If you take one thing from anything ever written about dog health, make it this: that combination is gastric dilatation-volvulus, it kills dogs within hours, and the only correct response is to be in a car on the way to a vet while somebody rings ahead.
Not in the morning. Not after seeing whether it settles. Now.
Table of Contents
What’s actually happening
Two things, and the second is what makes it fatal.
Dilatation is the stomach filling with gas and expanding. Uncomfortable, sometimes serious on its own, and survivable.
Volvulus is the stomach then rotating on itself, twisting shut at both ends. Nothing can get out — no gas, no food, no fluid — and the pressure builds with nowhere to go.
That twist also strangles the blood supply. Stomach tissue begins to die. The spleen, which is attached, often twists with it. The expanding stomach presses on the major veins returning blood to the heart, so cardiac output collapses and the dog goes into shock. Toxins from dying tissue enter the bloodstream.
That whole sequence can run from a dog who seems slightly off to a dog who is dying in under two hours. Survival rates are good with prompt surgery and drop sharply with delay, which is the entire reason this article exists.
Nothing in a cupboard helps with this. Everyday gut care — sensible feeding, steady routine, daily Probiotic Dog Treats for digestive support — is worth doing and belongs to a completely different category of problem. Bloat is surgical, it’s immediate, and no supplement, remedy or wait-and-see has any place in it.
The signs, in the order they usually appear
Restlessness. He can’t settle. Gets up, lies down, gets up again, moves rooms. Often the very first thing, and easily dismissed.
Unproductive retching. Trying to vomit and producing nothing, or a little foam or saliva. This is the single most characteristic sign. A dog who is actually being sick, repeatedly and productively, is less likely to have a twist.
A swollen, hard abdomen. Usually behind the ribs, tight like a drum. In deep-chested or heavy-coated dogs it can be difficult to see, so use your hands.
Drooling, often heavily.
Pacing and obvious distress. Looking at his own flank. Unable to lie down comfortably.
Rapid, shallow breathing, because the stomach is pressing on the diaphragm.
Pale gums. Press a finger on the gum — colour should return in under two seconds. Slow or pale means circulatory trouble.
Collapse. Late, and bad.
You do not need all of them. Restlessness plus unproductive retching is enough to go on.
Which dogs
Depth of chest matters more than size, though the two often go together.
Highest risk: great danes, above all — some studies put lifetime risk in the region of one in four. Also standard poodles, weimaraners, Irish setters, gordon setters, St Bernards, dobermanns, Irish wolfhounds, boxers, german shepherds, akitas, bloodhounds.
Also affected: basset hounds, dachshunds and other long-bodied breeds, plus mixed breeds with a deep narrow chest.
Other risk factors: being older, being underweight rather than overweight, being related to a dog who’s had it, eating one large meal a day, eating fast, and having an anxious or highly strung temperament — which turns up in the research more often than you’d expect.
Small round-chested breeds are much less likely to be affected. Less likely is not never.
What to do, precisely
Ring the vet or the out-of-hours service immediately. Say the words “I think my dog is bloating” and describe the retching and the swollen abdomen. Practices prioritise this call.
Get in the car. Don’t wait for a callback.
Do not try to make him vomit. Do not give anything by mouth — no food, no water, no oil, no bicarbonate of soda, no anti-gas remedies sold for humans. Do not press or massage the abdomen. Do not walk him around to “let it out”.
Do not wait to see if it settles. This is the decision that kills dogs. Owners who wait until morning frequently arrive with a dog who cannot be saved.
If he collapses on the way, keep going. Speed is the treatment.
What happens at the practice
Rapid assessment and stabilisation first — intravenous fluids and pain relief, because a bloating dog is in shock and going straight to anaesthetic would kill him.
Decompression, often by passing a tube or a needle through the body wall to release trapped gas and buy time.
An X-ray to confirm whether the stomach has twisted. There’s a characteristic appearance that’s usually unmistakable.
Then surgery, urgently. The stomach is untwisted, the damage assessed, and dead tissue or a damaged spleen removed if necessary.
And crucially, a gastropexy — the stomach is stitched to the body wall so it physically cannot twist again. Without it, recurrence is common. With it, it’s rare.
Be prepared for the cost. Emergency surgery of this kind runs into the low thousands, and out of hours adds to it. If your dog is insured, say so on arrival. If not, say that too — the practice will talk through options, and that conversation is much better had at the start.
Prevention, and what the evidence actually says
Some of the standard advice is well supported and some isn’t.
Feed two or three smaller meals rather than one large one. Well supported.
Slow the eating down. A slow feeder bowl, a snuffle mat, or scatter feeding. Fast eaters are at higher risk.
Avoid hard exercise for an hour either side of meals. Widely recommended, sensibly cautious.
Don’t let him gulp large volumes of water after exercise. Offer smaller amounts more often.
Raised bowls: probably don’t. This one has flipped. Raised feeding was recommended for years, and research has since associated it with increased risk in large and giant breeds. If you’ve been using one on that basis, it’s worth reconsidering.
Keep him at a healthy weight, though note the counterintuitive finding that being underweight is associated with higher risk.
Manage stress, which appears in the risk literature more than most owners realise.
Consider preventive gastropexy if you own a great dane or another very high-risk breed. It can be done at the same time as neutering, often laparoscopically, and for the highest-risk breeds many vets consider it genuinely worthwhile. Worth raising while your dog is young rather than after an emergency.
Feeding a high-risk breed, day to day
If you own a great dane, a setter, a standard poodle, a weimaraner or anything else on the list, it’s worth building the routine deliberately rather than drifting into it.
Three meals a day rather than one or two, spread out. Smaller volumes at any one sitting means less stomach distension.
A slow feeder or scatter feeding at every meal, not just when you remember. Fast eaters swallow air, and swallowed air is the raw material.
An hour of quiet either side of food. No walks, no ball, no garden games. This is the rule most often broken, usually because the dog is excited and it seems harmless.
Water in smaller amounts more often, particularly after exercise. A dog who empties a full bowl in one go after a run is doing exactly what you don’t want.
Feed separately if there’s another dog. Competition makes fast eaters faster.
Avoid the raised bowl, on current evidence.
Keep stress down around mealtimes. Feed somewhere quiet, away from the front door and the rest of the household. Anxious temperament shows up in the risk data and a tense dog eats faster.
None of it guarantees anything. It stacks the odds sensibly, and it costs nothing but habit.
Tell everyone who looks after him
Most people have never heard of this, and the ones who have know it as “bloat”, which sounds like indigestion.
So spell it out for dog walkers, sitters, kennels, day care and family. Write it down rather than mentioning it: what to watch for, what not to do, and the out-of-hours number.
The specific sentence worth giving them is “if he’s restless and trying to be sick without bringing anything up, ring me and ring the vet immediately, don’t wait.” That’s the whole message, and it’s short enough that somebody will actually remember it.
The research picture, honestly
Some of the advice around bloat is well evidenced and some is repeated because it always has been. Worth knowing which is which.
Well supported: breed and chest conformation as the dominant risk factors, a first-degree relative having had it, older age, one large meal versus several small ones, fast eating, and the effectiveness of gastropexy at preventing recurrence.
Reasonably supported: raised bowls increasing risk in large and giant breeds, being underweight increasing risk, and anxious temperament increasing risk.
Commonly repeated, weakly supported: the specific one-hour exercise window either side of feeding, which is sensible caution rather than a demonstrated threshold. Also various claims about particular ingredients or kibble sizes, where the evidence is thin.
Not supported: any home remedy, supplement or over-the-counter product preventing or treating it.
That last line is the one that matters. Everything in this article about prevention shifts probability. Nothing removes the risk, and nothing substitutes for getting to a vet.
What it isn’t
Ordinary wind. A dog comfortably farting on the sofa is not bloating.
An upset stomach, where he’s sick a few times and then settles and eats.
Simple overeating, where he’s uncomfortable and subdued but not retching unproductively and not distressed.
The distinguishing features are the unproductive retching, the distress, and the hard swollen abdomen. If you have any doubt at all, ring. No vet has ever complained about a false alarm on this one.
Have the plan already made
The single most useful thing you can do before anything happens.
Find out now who covers your practice out of hours and where they are. Put the number in your phone and on the fridge. Drive the route once in daylight if it’s somewhere you don’t know.
Know roughly what you’d do about payment at two in the morning.
And if you own a high-risk breed, tell everyone who looks after your dog what to watch for. Dog walkers, sitters, kennels, family. Most people have never heard of this and the ones who have usually only know it as “bloat”, which sounds far more benign than it is.
Afterwards
Dogs who get through surgery generally do well. Expect a few days in hospital, a couple of weeks of restricted activity, small frequent meals, and a wound to keep an eye on.
The digestive system will have been through a great deal — surgery, anaesthetic, fluids, usually antibiotics and strong painkillers. Small, easily digested meals, plenty of rest and steady daily gut support all help through the recovery weeks.
With a gastropexy, the odds of it recurring are low. Keep to the feeding rules anyway. And if the same set of signs ever appears again, the response is identical: car, phone, now.
