Is your senior dog throwing up yellow foam, food or nothing at all? Learn which signs mean go to the vet now, what vomit color can tell you, common causes in older dogs, and safe steps at home.
If your senior dog vomits once, then acts normal, eats and drinks, you can usually rest the stomach for a few hours and watch closely. Call your vet the same day if your old dog vomits more than once, is not eating, or seems tired, and go to an emergency vet now if there is blood, a swollen belly, retching with nothing coming up, or weakness. Older dogs dehydrate faster, so repeated vomiting is never something to wait out for days.
Emergency: go now
Retching or gagging with little or nothing coming up, a swollen or hard belly, restlessness and drooling. The American Animal Hospital Association lists these as early signs of bloat (GDV), a life-threatening twisting of the stomach that is most common in large, deep-chested dogs aged 7 and older.
Blood in the vomit (red or like coffee grounds), collapse, pale gums, or signs of pain.
A possible toxin or swallowed object, such as a toy, sock, bone, medicine or xylitol. ASPCA Animal Poison Control: (888) 426-4435 (a fee may apply).
Call your vet today
Vomiting more than once in a day, vomiting plus diarrhea, not eating, lethargy, weight loss, or drinking and peeing more than usual. In senior dogs these can point to kidney disease, liver disease, pancreatitis or other illness.
What the color can tell you
Yellow foam or liquid: bile on an empty stomach. The American Kennel Club describes bilious vomiting syndrome, usually in the early morning after a long fast, in dogs that are otherwise healthy.
Undigested food soon after eating: often eating too fast. This can also be regurgitation, which comes up without heaving and is worth mentioning to your vet.
White foam: an empty, irritated stomach, but frequent white foam with coughing can be a respiratory or heart issue.
Red, brown or coffee-ground look: possible bleeding. Call your vet now.
Common causes in older dogs
1. Eating something unusual (garbage, grass, table food).
2. Bilious vomiting (yellow, early morning).
3. Kidney or liver disease, which often come with thirst, weight loss or bad breath.
4. Pancreatitis, often after fatty food, with belly pain.
5. Medicine side effects, including some pain relievers.
6. Blockage from a swallowed object, and tumors in some senior dogs.
What to do at home (only if your dog is otherwise bright)
1. Pick up food for a few hours. Leave fresh water, offered in small amounts.
2. If no more vomiting, offer a small bland meal your vet recommends.
3. For early-morning yellow vomit, ask your vet about a small late-night snack.
4. If your dog gulps meals, try smaller meals in a slow feeder.
5. Write down each episode: time, color, what came up, and whether your dog ate afterward.
6. Do not give human anti-nausea or stomach medicines without your vet's advice.
A tool that helps (#ad)
[Outward Hound Fun Feeder Slo Bowl](https://www.amazon.com/dp/B0787FVCBW?tag=silverpaw02-20): maze design the maker says slows eating up to 10 times, holds 2 cups, non-slip, top-rack dishwasher safe. Helpful for fast eaters who bring meals back up.
What your vet may check
An exam, belly palpation, blood work and a urine test, and often X-rays or ultrasound. For suspected bloat, X-rays are urgent.
Related guides
[What to feed a senior dog with no appetite](/blog/what-to-feed-senior-dog-no-appetite)
[Senior dog losing weight but still eating](/blog/senior-dog-losing-weight-still-eating)
[Senior dog shaking and acting weird](/blog/senior-dog-shaking-acting-weird)
Frequently asked questions
Why is my old dog throwing up yellow in the morning? Often bile on an empty stomach. If your dog is otherwise well, ask your vet about a late snack. If it becomes frequent, get a check.
When is vomiting an emergency in a senior dog? Blood, a swollen belly, unproductive retching, weakness, collapse, or vomiting that will not stop.
My dog is retching but not vomiting. What should I do? Treat it as an emergency, especially in a large deep-chested dog, and go to a vet now.
Should I give water after my dog vomits? Small amounts of fresh water are usually fine. If your dog vomits water back up, call your vet.
Sources: [AKC: Bilious Vomiting Syndrome in Dogs](https://www.akc.org/expert-advice/health/bilious-vomiting-syndrome-in-dogs/); [AAHA: Understanding Canine Bloat (GDV)](https://www.aaha.org/resources/understanding-canine-bloat-gdv-a-medical-emergency/); [VCA: Bloat in Dogs](https://vcahospitals.com/know-your-pet/bloat-gastric-dilatation-and-volvulus-in-dogs).
This guide is educational and does not replace your veterinarian. SILVERPAW earns from qualifying Amazon purchases at no extra cost to you.
Shop related senior dog essentials
Affiliate disclosure: SILVERPAW is a participant in the Amazon Associates Program. As an affiliate of ILYESHOPI LLC, we earn a commission from qualifying purchases at no extra cost to you. We only recommend products we believe help senior dogs. Prices, ratings, reviews, and stock are confirmed on Amazon.