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If your dog is vomiting after drinking water, you are rightfully concerned. Not only is vomiting a sign of something amiss, but if your dog is vomiting after drinking on a frequent basis, your dog is likely not getting enough fluids to keep himself hydrated.

It's important finding out the underlying cause of your dog's vomiting. Only once the issue is addressed, will the vomiting subside.

 Making sure your dog doesn't gulp too much water at once when he's nauseous can help lower the chances of vomiting if your dog's stomach is upset.

Causes of Dog Vomiting After Drinking Water 

If your dog vomits shortly after drinking water and this seems to occur quite often, you want to see your vet to rule out any possible underlying problems.

One important distinction to make is whether your dog is vomiting or regurgitating the water. 

When a dog vomits water, there are usually strong stomach contractions as the water is expelled from the mouth through substantial retching.

On the other hand, when a dog regurgitates water instead, the water just passively comes out without much effort.

Dog Not Drinking Water

Is your dog vomiting after drinking water?

1) The Stomach Needs Some Rest

If your dog has nausea or an upset stomach because he got switched over a different food too quickly or because he simply ate something that didn't agree with him, gulping lots of water at once can further upset his stomach, causing him to vomit shortly after drinking.

When a dog has an upset stomach, it's important to give the stomach some rest. Introducing food or water too soon, can cause further vomiting. 

Generally, for mild cases of vomiting, it is helpful to not provide anything to eat or drink during the first 12 to 24 hours.

Then, afterwards, if no vomiting occurred during the fasting, ice cubes can be offered to lick, and if the dog still doesn't vomit, then a bland diet can be offered.

Before trying a bland diet, it's important to see if your dog is a possible candidate for dog upset stomach home remedies. 

There are risks trying home remedies if your dog is vomiting because of a serious underlying issue and waiting can make matters worse!

2) Megaesophagus

If your dog is regurgitating the water passively, this may be an early warning sign of a condition that is known as megaesophagus, explains veterinarian Dr. Kara. 

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 Megesophagus is simply the weakening and enlargement of the muscles of the esophagus. In this condition, liquids may just sit there and then end up being regurgitated, while solid foods in the early stages go down due to gravity.

It's important to see the vet for this condition because the condition tends to progress causing dog barking changes, exercise intolerance and regurgitation of undigested food.

3) A Problem With the Larynx

Another problem with a dog vomiting water after drinking is a condition known as laryngeal paralysis. In this condition the dog' larynx is affected and it no longer works as it should. Basically, the larynx becomes paralyzed and the affected dog is unable to keep water from entering into the trachea instead of the esophagus, explains veterinarian Dr. Loretta. 

Often the first sign the owner recognizes is that the dog's voice starts becoming hoarse, almost as if the dog has been barking too much. As the condition progresses, it causes more significant changes such as breathing noises, gagging and choking when eating.

 In severe cases, the dog may be unable to take in enough air which risks becoming a life threatening situation. Laryngeal paralysis in dogs can be treated through a surgical procedure that is known as 'laryngeal tie-back' surgery.

4) Presence of A Blockage

Vomiting accompanied by heaving, gagging and stomach contractions that occurs frequently every time the dog drinks or eats something can be caused by several issues that require investigation. Here are some other differentials.

It could be your dog is suffering from a blockage from ingesting a foreign object. This is always a consideration in young dogs who vomit repeatedly without getting better. In older dogs, a blockage may take place due to some type of abdominal mass.

 When this happens, the foreign object or mass blocks the passage of food and water and can lead to the dog throwing up with great frequency.

Only by seeing the vet it is possible to pinpoint the underlying cause if it's more than a dietary indiscretion or diet change. Your dog may need a physical exam, some abdominal x-rays, and perhaps some blood work to diagnose the problem.

5) Drinking Water Too Fast

On a lighter note, sometimes vomiting after drinking water is simply a matter of a dog who gulps water too fast. This often happens after a dog has exercised and feels compelled to drink too much water at once.

In this case, what happens is that gulping water too fast stimulates the dog's gag reflex and therefore triggers vomiting or the sensation of having to vomit, further adds Dr. Loretta.

In such a case, it helps to encourage the dog to drink only small amounts of water at a time or offering ice cubes. Another option coming from Dr. Kara consists of placing a large rock in the bowl so that the dog is forced to drink around it which should slow down his drinking considerably.

Best to See the Vet!

If vomiting after drinking seems to happens quite frequently though, the best option is always to consult with the vet so to rule out any other potential underlying causes.

There can be many more causes that cause vomiting in dogs such as pancreatitis, liver or kidney problems, ingestion of toxins and more.

As seen, there can be various causes as to why your dog is vomiting after drinking water. While in some cases it may be just an isolated event that occurs sporadically, if it seems to recur with a certain frequency, you should see your vet. 

And of course, if your dog is unable to hold any water down or is showing other symptoms, you may want to see your vet as soon as possible to play it safe.

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