Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Does My Dog Throw Up When I Leave the House? Vet-Approved Explanation

Dog vomit in the living room on the floor

It can be worrying if you have noticed that each time you leave the house your beloved dog throws up, not to mention a little irritating if you happen to step in the vomit or scrape the door over it when you arrive home!

While a one-off episode of vomiting isn’t usually anything to be overly concerned about, persistent or regular episodes need further looking into. Frequent vomiting could be due to an underlying health condition that you’ll want to have diagnosed and treated by your veterinarian. Alternatively, your dog could be suffering from separation anxiety, which we will concentrate on in this article and discuss in further detail.

divider dog paws 3 oct 2024

What Is Vomiting?

Vomiting is the forceful passage of stomach contents through the esophagus to the exterior. It is an active process involving abdominal contractions (retching). Vomiting often contains partially digested food and is a protective reflex to remove toxins or foreign bodies from the gastrointestinal tract. Your dog may exhibit signs of nausea before vomiting, such as drooling, licking their lips, and pacing.

Causes of Vomiting

Vomiting can occur for a variety of reasons, including infections, eating something they shouldn’t have, dietary issues, parasites, organ issues, and cancer, to name a few. Vomiting can also be caused by stress and anxiety.

If you’re concerned about your pet’s well-being, we recommend you contact a veterinarian.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the personalized advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

What Is Separation Anxiety?

Anxiety is a response to something your dog doesn’t like or is fearful of. Separation anxiety, specifically, is the response some dogs may exhibit when you are not there. They can become so attached to you that they get distressed when you’re not in their immediate vicinity.

Signs of Separation Anxiety

  • Panting
  • Shaking
  • Destructive behavior, such as chewing, ripping, and clawing at furniture, flooring, or any of your belongings
  • Excessive drooling
  • Clinginess
  • Soiling in the house
  • Barking/howling/whining/whimpering/crying
  • Restlessness/pacing
  • Licking their lips
  • Tail between their legs
  • Retreating or running away
  • Repetitive behaviors, such as excessive licking
  • Vomiting

divider dog paws 3 oct 2024

How to Help Your Dog With Separation Anxiety

This takes time, consistency, and persistence, but it is possible to remedy the issue. The goal is to help your dog become less fearful and more relaxed when you leave them. Separation anxiety is complex and a vast issue to treat and advise on; therefore, help should be sought from your veterinarian and/or a canine behaviorist to yield the best results, as treatment is based on each individual dog.

1. Identify the Timeframe

Does your dog get immediately upset when you leave or does it happen after being alone for a certain amount of time? Does your dog start off very upset and then calm down, or do they continue to stay worked up the entire time you are gone? All of these are questions that can help you determine the best course of action. You may need to use a video camera or listen outside the door to find the answers to these questions.

You may also try to decipher if the behavior is due to loneliness, boredom, frustration, needing the toilet, wanting exercise, or because of noises and disturbances outside, as these could further shape your plan.

person petting a chocolate labrador dog
Image Credit: My July, Shutterstock

2. Consistent Training

Some sort of training or retraining program needs to be instigated. As each dog is unique, this is not a complete solution but should be a helpful start. We recommend following the direct instructions of your vet.

  • Start with short periods. Leave your dog alone for just a few minutes. Gauge their reaction and reward them for good behavior. Gradually start to increase the amount of time you’re gone with rewards at the end for good behavior.
  • Leave special/favorite toys around to occupy and distract If your dog has something interesting and fun to do while you are gone, this may help keep them from getting upset and vomiting. Examples might include security stuffed toys/teddies, blankets that smell like you, their favorite balls, interactive puzzles, treat balls, and toys that you can stuff and fill with tasty treats. Remember that any treats or chews given need to be deducted from the daily food allowance to prevent overfeeding.
  • Make sure the basics have been seen to. Be sure your dog has been fed, has water, is getting plenty of exercise and mental stimulation, and has been out for a potty break before you leave. This will help ensure that their separation anxiety and potentially their vomiting isn’t due to one of their basic needs not being met.
  • Minimize disturbances. Minimized disturbances could also help calm your pooch. The goal is to make your home as zen and relaxing as possible. To achieve this, you can try closing the curtains on all windows and doors, leaving a radio or TV on to muffle outside noises, or placing them in their own room with everything they’ll need while you’re away. However, this is really based on the individual dog, so you’ll need to monitor how they react to these before leaving for longer periods.
  • Never punish your dog for vomiting or unwanted behaviors. Your dog isn’t getting themselves worked up on purpose, so if you happen to come home to a pile of dog vomit, the last thing you want to do is punish your dog for, as this could make the problem even worse. Rather than punish, reward good behaviors.
  • Consider hiring dog sitters and walkers. These are helpful options and are particularly recommended if you are leaving your dog for more than 4 hours. Having other people to check in on your dog periodically can be comforting and helpful to them (and you!)
  • Medication. Your veterinarian or behaviorist may suggest medication to help with retraining and to ease any nausea.

3. Get a Specialist Involved

Some severe cases of separation anxiety may require more than these tips. In these cases, getting a specialist involved may be key. This could be your veterinarian, a dog trainer, or a clinical behaviorist. Your veterinarian is a great first resource to rule out medical causes for vomiting and to help start working on your dog’s separation anxiety, but a professional trainer or animal behaviorist may be necessary for further training.

female training a jack russell terrier at home
Image Credit: Prostock studio, Shutterstock

divider dog paws 3 oct 2024

Conclusion

Having a few vomiting episodes here and there is par for the course of pet parenting; however, when it becomes a pattern or is only happening when your dog is alone, it needs investigating. It could be due to health problems requiring veterinary investigation and treatment, or it could be due to separation anxiety.

See also:


Featured Image Credit: Cunaplus, Shutterstock

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Cream Long-Haired Dachshund: Info, Pictures, Origin & History

The Dachshund is one of the most diverse dog breeds when it comes to coat color. There are 15 Dachshund colors listed by...

Types of Terrier Dogs: An Overview (With Pictures)

Terriers encompass a diverse group of dog breeds known for their tenacity, intelligence, and spirited personalities. Originating from various regions and bred for...

12 Fun Winter Activities to Do With Your Dog (2025 Guide)

Whether you’re the type of person who loves to see snow on the ground in the winter or one who prefers to stay...

When Will My Golden Retriever Stop Teething? How to Help & Training Tips

Golden Retrievers are intelligent, friendly, and adorable giants who make amazing family pets. But before they turn into the big, lovable dogs we...

More related

Vapor Wake Dogs: What They Are & What They Do (Vet Reviewed)

While most of us think of dogs as being loving companions and members of the family, dogs were first domesticated to work with...

Rainy Day Activities for Dogs: 17 Fun Ideas

Some dogs love nothing more than getting wet and soggy. Others will hide under the table to avoid the slightest of showers. But,...

10 Best Heartworm Medicines for Dogs in 2025 – Reviews & Top Picks

Heartworm disease can be fatal for our beloved dogs, but it’s also very preventable. Regularly administering heartworm medication is highly effective in protecting...

Why Do Corgis Butts Float in Water? The Interesting Answer & Fun Facts

Corgis are an unusual breed of dog in many ways. They have shorter legs than most breeds of their size and stature, but...

Keep reading

Loyall Life Dog Food Review 2025: Pros, Cons, Recalls & FAQ

Review Summary All dog owners are looking for the best nutrition for their dogs in the food they buy for them. There are so many options available today, some with great nutrition and some without. Loyall Life dog food is...

Dogster_Loyall Life Dog Food Review

Spirulina for Dogs: Vet-Reviewed Benefits, Uses & Tips

Everyone has heard of the benefits of plant-based foods, and this way of eating has become more popular among people in the last two decades. Spirulina is a supplement used every day by thousands of people because it’s rich in...

spirulina powder and tablets in a wooden bowl

7 Best Dog Foods for Corgis in 2025 – Reviews & Top Picks

If you’re the pleased and proud owner of a Corgi, you’re a lucky person indeed! Corgis are adorable but also bundles of energy and personality with a fascinating history. Whether you have a Pembroke or a Cardigan, both Corgi breeds...

Portrait of adorable Corgi

Pet Tutor Mini Feeder Review 2025: Pros, Cons & Verdict

Review Summary Have you been looking for a better way to train your canine companion? If so, you may want to invest in a treat dispenser of some kind, like the Pet Tutor Mini Feeder. This dispenser can help you...

Pet Tutor Mini Feeder Review

Castor & Pollux Dog Food Review 2025: Pros, Cons, Recalls, and FAQ

Review Summary Please note that several Castor & Pollux products are currently unavailable. At this time, we are unsure whether these items have been fully discontinued, are experiencing supply issues, or if there is another reason for their absence. We...

Dogster_Castor & Pollux Dog Food Review

10 Best Dog Foods for Newfoundlands in 2025 – Reviews & Top Picks

Feeding a Newfoundland is a bit different than feeding a Chihuahua. While all dogs will have similar protein needs, there are other things your Newfoundland will require in dog food (such as minerals and nutrients). Finding the perfect dog food...

newfoundland dog

Am I Overfeeding My Dog? 6 Vet-Verified Signs to Watch For

We all know how much dogs enjoy mealtimes and will happily eat whatever you give them. You might mistake their hearty appetite as a sign they need more food or perhaps believe the recommended feeding guidelines are inappropriate for your...

golden retriever dog eating healthy dry food from bowl at home

Can Dogs Have Scallops? Vet-Verified Nutrition Facts & FAQ

Learning that 95% of people consider their pets family members is not all that surprising these days. We open our homes to our dogs, share our vacations with them, and even let them sleep in our beds. We even slip...

Dogster-Can-Dogs-Have-Scallops