Most cases of dog gagging are caused by foreign objects in the mouth, throat, or esophagus, but it can also be caused by some health problems such as kennel cough. This page looks at the possible causes of gagging in dogs.
All dogs gag occasionally and if the gagging stops rather quickly and does not recur, we do not have to worry too much. Sometimes, a dog gags when the collar is too
tight around the neck. Older dogs tend to gag more because, just like people, when they get older, they tend to produce more mucus and their throats are more sensitive.
If however your dog is gagging non-stop, or on-and-off repeatedly, then you need to take action to figure out the cause of the gagging. More often than not, he has
probably got something caught in his throat or esophagus. However, there are some other health problems that can cause dog gagging as well.
Below is a list of some possible causes of dog gagging.
Causes of Dog Gagging - Foreign Objects
- Foreign Objects in the Throat: Dogs gag on small objects such as small rubber balls that can lodge in the back of the throat. Sometimes, bones can lodge sideways in the throat and that can cause gagging in dogs as well. Suspect a foreign object caught in the throat if your dog is gagging, pawing at the mouth, drooling, retching and attempting to vomit. The dog will naturally act and look very anxious.
- Foreign Objects in the Esophagus: The esophagus is the tube that connects the throat to the stomach and is responsible for propelling food and water into the stomach by a series of rhythmic contractions. It is rather common for foreign objects (such as bones, bone splinters, small toys, string, fish hooks, etc.) to be caught in the esophagus. Signs of a foreign object caught in the esophagus include gagging, retching, drooling, and regurgitating.
If your dog has been gagging and regurgitating for a few days and is having difficulty swallowing, it is possible that there is a partial obstruction of the esophagus.
More seriously, if a sharp object is caught in the esophagus and has punctured it, the dog will develop a fever. He will also cough and will have difficulty swallowing. His breathing will be rapid.
Partial obstruction or perforation of the esophagus are serious matters and the dog should receive veterinary attention without delay.
- Foreign Objects in the Mouth: Foreign objects such as bone splinters, plant awns, fish hooks, etc. can also be caught in the mouth, between the teeth, stuck in the lips, gums, in or beneath the tongue, or wedged across the roof of the mouth. The signs of a foreign body in the mouth include pawing constantly at the mouth, drooling, gagging, rubbing the mouth on furniture or along the floor, or licking the lips repeatedly. If the object has been in the mouth for over a day, the dog will show signs of lethargy, refusal to eat, and bad breath.
If your dog suddenly starts gagging, the first thing to do is to look into his mouth and down his throat to see if there is a foreign object stuck somewhere. Get immediate veterinary assistance if you see something but are unable to get it removed.
Other Possible Causes of Dog Gagging
Other possible causes include:
- Kennel Cough: If a dog is suffering from kennel cough, he will have a dry, hacking cough which is often accompanied by gagging and retching. It usually goes like "cough, cough, cough - ack". Please refer to our page on kennel cough for more information on the symptoms and treatment of this disease.
- Rhinitis and Sinusitis: Rhinitis (nasal infection) and sinusitis (sinus infection) can cause dog gagging or retching (from a postnasal drip), sneezing, and nasal discharge which is thick, creamy, and foul smelling. Common causes of acute rhinitis include parainfluenza, adenovirus, or herpesvirus. Secondary bacterial rhinitis can be caused by distemper. In older dogs, infected teeth and tumors are the most common
causes of rhinitis and sinusitis.
- Roundworms: Puppies with roundworm infestation gag and cough when the larvae of the worm get to the lungs where they break through the capillaries and get into the air sacs. Other symptoms of roundworm infestation include intermittent vomiting and diarrhea. Worms can sometimes be found in the stools or vomitus. Puppies with roundworms are anemic and stunted in growth, have a pot-belly, and a dull coat.
- Elongated Soft Palate: Some breeds of dogs (e.g. pugs) have this anatomical problem in which the soft palate is elongated, partially
obstructing the airway during breathing. This results in gagging, snorting, snoring, and gurgling, especially during and after exercise.
When to See a Vet?
If your dog is gagging and is exhibiting some of the following signs and symptoms, take him to the vet immediately:
- Nasal discharge for over two days
- Having difficulty opening or closing his mouth
- Having difficulty eating or swallowing
- Constant pawing at the mouth
- Red and swollen gums
- Excessive drooling
- Excessive panting
- Consistent bad breath
- Chronic diarrhea or vomiting
- Signs of anxiety and/or lethargy