Dogs being fed upright in high chairs. While it may seem like an odd trend to the untrained eye, parents of dogs with megaesophagus know this scene isn't just staged for social media — it's an everyday necessity.

Certain breeds are born with this condition, which makes it difficult for them to digest food unless they eat in an upright position. Managing megaesophagus in dogs can be achieved through a special diet and, in some rare cases, surgery.

What Is Megaesophagus in Dogs?

Normally when a dog swallows, a muscular tube called the esophagus moves the food from their mouth to their stomach to be digested. In megaesophagus, dogs are unable to swallow food normally because their esophagus lacks the muscular tone and motility needed to move food and water. Instead, their esophagus dilates and food backs up, causing them to regurgitate the meal.

This condition is the most common cause of regurgitation in dogs. It's a congenital condition, meaning some dogs are born with it. Megaesophagus is a heritable disease in miniature schnauzers and wire-haired fox terriers, Newfoundlands, German shepherds, Great Danes, Labrador retrievers, Irish setters, shar-peis and greyhounds are also predisposed.

Portrait of a dark brown and white greyhound

This condition can also be acquired secondary to another disease, like neurological or hormonal disorders, as well as trauma to the nervous system, blockage in the esophagus, severe esophageal inflammation or exposure to toxins.

In many cases, unfortunately, the cause is never determined.

What Are the Signs of Megaesophagus in Dogs?

The main indicator of megaesophagus in dogs is regurgitation fairly soon after eating. One thing to note is that regurgitation looks different from vomiting. Vomiting usually involves audible retching where the contents that come back up originate in the stomach or small intestines. With regurgitation, food, water and saliva come back up without retching and originates within the esophagus, usually without warning.

Other signs may include weight loss despite a voracious appetite, poor growth in puppies, excessive drooling or bad breath. Dogs with megaesophagus are at risk for aspirating regurgitated food into their lungs and developing aspiration pneumonia. Signs of aspiration pneumonia include cough, nasal discharge, fever, poor appetite and lethargy.

If your dog is experiencing any of these signs, consider making an appointment with your veterinarian for further evaluation as soon as possible.

How Is Megaesophagus in Dogs Diagnosed?

Both megaesophagus and aspiration pneumonia are usually seen on a chest X-ray. There are no specific blood tests for megaesophagus; however, your vet may want to run additional tests to determine if the condition is secondary to another disorder. This may require an esophageal endoscopy.

Endoscopy is where a camera on the end of a tube is passed down the esophagus to look for abnormalities. Endoscopy is a useful procedure in cases of esophageal stricture, tumors or foreign bodies. This procedure will require dogs to go under anesthesia, but generally, your dog will be able to return home after the procedure.

If the underlying cause can be treated & intervention is early enough, the esophagus may regain motility and megaesophagus may regress. In many cases, however, megaesophagus is a lifelong condition that must be managed.

Managing Megaesophagus in Dogs

Preventing aspiration and allowing food to travel to the stomach is key in the management of megaesophagus in dogs. Dogs with this condition are often underweight and may require a high-calorie diet, which can be best satisfied with wet or canned food.

When these soft foods are hand-rolled into bite-sized meatballs, they can stimulate a dog's esophagus to contract and move solids. A therapeutic diet may be a good choice for dogs with megaesophagus; talk to your veterinarian to see if one might be right for your dog.

Dogs should be fed in an upright position, about 45 to 90 degrees to the floor, which is where high chairs come in handy. The Bailey chair is designed specifically for dogs who have megaesophagus, supporting them in the upright position for feeding. If your dog is only mildly affected, you may not need to invest in a special chair; however, food bowls must be elevated enough from the floor so that the dog does not have to bend down at all to eat.

Some dogs may be so severely affected that they cannot keep anything down. In these cases, a permanent stomach tube can be inserted by a vet to bypass the esophagus entirely. Stomach tubes are well-tolerated and generally easy to maintain.

It is very important to monitor dogs with megaesophagus daily for any signs of life-threatening aspiration pneumonia, such as difficulty breathing, fever and rapid heart rate. Aspiration pneumonia and malnutrition are the leading causes of death in dogs with megaesophagus. If your dog has this condition, be sure to check their weight every week and monitor for signs of aspiration pneumonia daily.

While megaesophagus can present some challenges, it doesn't have to interfere with your pet's quality of life. With appropriate management and monitoring, in conjunction with a strong partnership with your local vet, many dogs with megaesophagus can have a relatively normal life.

Dr. Sarah Wooten Dr. Sarah Wooten

Dr. Sarah Wooten graduated from UC Davis School of Veterinary Medicine in 2002. A member of the American Society of Veterinary Journalists, Dr. Wooten divides her professional time between small animal practice in Greeley, Colorado, public speaking on associate issues, leadership, and client communication, and writing. She enjoys camping with her family, skiing, SCUBA, and participating in triathlons.

Related articles

Dog Scratch Reflex: Why Dogs Kick Their Legs During Belly Rubs

Wondering why your dog's leg kicks when you scratch his belly? Learn about dog scratch reflexes, why they love belly rubs and how it's useful for your vet.

Going to the Beach: How to Prepare Your Pup

If you're thinking of taking your dog to the beach, you'll want to plan ahead. Learn some essential supplies to bring, as well as tips to keep him safe.

Dogs That Shed: Why and What You Can Do

Discover why dogs shed, learn the breeds that shed most & least as well as reducing their excess hair, and how to keep your house clean of loose hair.

Treating a Torn ACL/CCL in Dogs: TPLO Surgery & More

Learn about torn CCL injuries in dogs (equivalent to a torn ACL in humans), including risk factors, how they are diagnosed and how TPLO surgery can help.

What to Do if Your Dog Eats a Dead Bird

Learn about potential health issues that can occur if your dog eats a dead bird, such as bacterial & parasite issues, and signs that can indicate sickness.

Understanding & Caring For Your Miniature-Breed Dog

Learn how the needs of small breed dogs are different than other dogs, and get helpful tips on how you can provide for their needs.

Can Dogs Be Ticklish? (& Where Are Their Spots?)

Learn whether your dog is ticklish, how to recognize if they are & which spots are most sensitive, as well as how to tell if they don't like being tickled.

Is My Dog Mad at Me?

Learn the truth about dogs and anger, common behaviors that are mistaken as anger, and how to better interpret and respond to times when they act out.

How to Safely Remove Burrs on Dogs

Burrs on dogs are a common problem for pet parents, especially if your dog is outside a lot. Learn how to remove burrs from your dog's fur safely.

Pyoderma in Dogs: What You Need to Know

Learn what pyoderma in dogs looks like, what causes it and how nutrition & your dog's food can play a role in preventing and treating the infection.

Chondrodystrophic Dog Breeds: All About Short-Legged Dogs

All About Chondrodystrophic (Short Legged) Dog Breeds

Can Dogs Have Celery?

Learn whether celery is bad for your dog, how much is a safe amount, and preparation tips if you think they'll enjoy it as a snack.

Pets, Marijuana & THC: What You Need To Know

If your dog ate marijuana, don't panic. Learn how weed and THC can affect dogs, what the signs are, and when you should be concerned.

Dogs With Joint Problems Don't Have to Remain in Pain

Learn the common signs that a dog is having joint problems, how joint issues occur & why they can so painful for him, as well as how they can be treated.

Overcoming Obesity in Small Dogs

Learn how to properly feed and treat your little or small breed dog to keep their weight under control to avoid any weight-related health issues.

Do Dogs Get Jealous?

Understand if dogs get jealous and what you can do to keep their envious behaviors at bay through fair treatment.

Tips for the First Few Weeks with Your New Puppy

Ensure that you're meeting all of your new puppy's needs by learning typical puppy behaviors in the home.

Why Is My Dog Not Peeing?

If your dog won't pee, it could indicate anything from stress, bladder stones, kidney issues, to an emergency. Discover the causes and what to do here.

Reducing That Wet Dog Smell in Cars

Learn what causes that wet dog smell, and what you can do to help reduce it overtaking your car, as well as how to get rid of it.

Dog Warts: What are They & What Causes Them?

Learn whether dogs can actually get warts and their similarities to other skin growths, as well as whether they can be harmful for your dog.