Why Is My Dog Vomiting? When to Call a Vet in Edmonton

How serious is vomiting in dogs?

Vomiting is a symptom, not a diagnosis. A dog may vomit after eating garbage or changing foods too quickly, but the same symptom can occur with pancreatitis, an intestinal blockage, poisoning, kidney or liver disease, infection, or gastric dilatation-volvulus, commonly called bloat.

The number of episodes matters, but it is only one part of the decision. Your dog’s age, size, medical history, behaviour, hydration, appetite, and other symptoms can make even one episode concerning.

How many times can a dog throw up before going to the vet?

There is no completely safe number that applies to every dog. The American Veterinary Medical Association lists severe vomiting, more than two episodes in 24 hours, or vomiting combined with obvious illness among situations requiring immediate veterinary consultation or care.

Do not wait for a third episode if your dog has blood in the vomit, a bloated abdomen, severe lethargy, pain, pale gums, collapse, breathing problems, or known access to a toxin, medication, sock, toy, bone, corn cob, or other object.

Emergency warning signs to watch for

• Repeated vomiting or inability to keep water down
• Bright red blood or dark, coffee-ground material
• Repeated retching with little or nothing coming up
• A firm, enlarged, or painful abdomen
• Marked lethargy, weakness, wobbliness, or collapse
• Pale, white, blue, grey, or very dark-red gums
• Trouble breathing or unusually rapid breathing
• Vomiting with frequent diarrhea or black, tarry stool
• Suspected toxin, medication, or foreign-object ingestion
• Signs of dehydration, including tacky gums or sunken eyes

What does the colour or appearance of dog vomit mean?

The appearance can provide clues, but it cannot diagnose the cause by itself. Take a clear photo before cleaning it up and tell your veterinarian what your dog ate and when the episode occurred.

Yellow vomit or yellow bile

Yellow fluid is often bile and may appear after the stomach has emptied. It can occur with a temporary stomach upset, but repeated yellow vomiting can also accompany gastroenteritis, pancreatitis, an obstruction, or another illness. Call if it repeats or your dog has other symptoms.

White foam

White or clear foam may be saliva and stomach fluid. It can occur with nausea or an empty stomach, but it can also appear with more serious gastrointestinal problems. Frequent foamy vomiting, abdominal swelling, pain, or dry heaving needs urgent assessment.

Undigested food

If food comes up passively soon after eating, without nausea or abdominal heaving, it may be regurgitation rather than vomiting. Repeated regurgitation can indicate an esophageal problem and should be evaluated. A short video of the event can help your veterinarian distinguish the two.

Red blood or coffee-ground material

Fresh blood may appear as red streaks or clots. Partly digested blood can look dark brown or like coffee grounds. Either appearance warrants immediate veterinary advice.

Common reasons a dog may vomit

1. Dietary indiscretion: garbage, table scraps, spoiled food, grass, feces, or a sudden diet change.
2. Gastroenteritis: irritation or inflammation caused by diet, infection, parasites, or other triggers.
3. Foreign objects: socks, toys, bones, string, food wrappers, corn cobs, and other objects can obstruct the digestive tract.
4. Toxins or medications: chocolate, grapes, raisins, xylitol, cannabis, human medications, cleaners, rodenticides, and some plants can cause vomiting and organ damage.
5. Pancreatitis: inflammation of the pancreas may cause vomiting, poor appetite, abdominal pain, and lethargy.
6. Systemic illness: kidney disease, liver disease, Addison’s disease, diabetes, and other conditions may present with vomiting.
7. Bloat or GDV: the stomach expands and may twist, creating a life-threatening emergency.
8. Motion sickness or medication effects: car travel and certain treatments can cause nausea, but repeated episodes still deserve a call.

What should I do at home while calling the vet?

• Remove access to garbage, food scraps, chemicals, medications, toys, and anything else your dog may swallow.
• Let your dog rest and watch breathing, energy, gum colour, abdominal size, urination, bowel movements, and additional vomiting.
• Keep fresh water available. If drinking triggers more vomiting or your dog cannot keep water down, seek care promptly.
• Photograph the vomit and, when safe, save packaging from anything your dog may have eaten.
• Write down the number and timing of episodes, recent foods, diet changes, medications, travel, and possible exposures.
• Call before changing the diet or fasting your dog. Feeding advice depends on the cause, age, size, and medical history.

Loose stool at the same time? Our guide to dog diarrhea and when to call a vet explains blood in stool, puppies, dehydration warning signs and what to record.

What will the veterinarian check?

Your veterinary team will ask when the vomiting began, how often it happened, what it looked like, and what your dog may have eaten. The examination may assess hydration, temperature, gum colour, abdominal pain or swelling, and signs of an obstruction or systemic illness.

Depending on the findings, testing may include bloodwork, urinalysis, a fecal test, X-rays, or ultrasound. Treatment can include anti-nausea medication, fluid therapy, gastrointestinal support, treatment of the underlying disease, or urgent removal of a foreign object. The right plan depends on the cause, which is why treating vomiting blindly at home can be risky.

Frequently asked questions about dog vomiting