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.

Water Intoxication in Dogs: Vet Reviewed Signs & Treatments

a border collie dog looking sick covered with blanket on couch

Water intoxication in dogs is rare, but it can happen, especially if your dog enjoys playing with water. They may gulp and intake a lot of water in a short amount of time while swimming or playing with a running hose.

There are three main types of water intoxication—hyponatremia, hypernatremia, and chlorine ingestion. Hyponatremia refers to a significant loss of sodium in the body. Hypernatremia refers to excessive salt intake, which can occur if a dog plays in the ocean and does not have access to an adequate amount of fresh water. Lastly, dogs that drink from pool water, can get intoxicated by ingesting chlorine.

Water intoxication can quickly lead to serious consequences. So, here are some signs of water intoxication and information on some of the available treatment options.

dogster paw dividerThe 3 Types of Water Intoxication

1. Hyponatremia

dog drinking from a portable dog water bottle

A dog can experience hyponatremia in a couple of different ways, including ingesting too much water. This can happen if a dog constantly swallows water while retrieving items out of water.

Signs of Hyponatremia

Hyponatremia can become serious very quickly, so it’s important to react immediately.

Dogs can show some of these signs:
  • Bloating
  • Glazed eyes
  • Disoriented
  • Difficulty breathing
  • Salivating
  • Loss of coordination
  • Vomiting
  • Seizures

In extreme cases, dogs can fall into a coma. The best thing to do for hyponatremia is to take your dog to emergency animal care.

Treatment for Hyponatremia: Administering Electrolytes

Administering electrolytes is one of the main ways a veterinarian will treat hyponatremia. This method will help raise a dog’s sodium levels back to a safe amount.

Electrolytes are administered slowly with an IV. Doing this process too quickly can cause more harm than good, so it’ll take some time before a dog gets stabilized.

Sick mastiff dog sitting on table in a vet clinic
Image Credit: UfaBizPhoto, Shutterstock

Treatment for Hyponatremia: Diuretics

A veterinarian may have your dog take diuretics along with delivering electrolytes with an IV. The purpose of diuretics is to help flush out excess fluid from the body.

If a dog has a particularly severe case of hyponatremia, a veterinarian may consider administering hypertonic saline, furosemide, or mannitol


2. Hypernatremia

One cause of hypernatremia is if a dog ingests too much saltwater. So, it’s important to be mindful of how your dog plays near the ocean and other large bodies of saltwater.

Signs of Hypernatremia

Hypernatremia can also progress very quickly, so it’s important to watch out for these signs and symptoms:

  • Disorientation
  • Diarrhea
  • Increased thirst
  • Seizures
  • Confusion
  • Coma
  • Vomiting

Just like hyponatremia, make sure to respond quickly and take your dog to emergency care if you suspect it’s experiencing hypernatremia.

Treatment for Hypernatremia: Fluid Therapy

Fluid therapy is commonly used for hypernatremia to restore balance to sodium levels. Fluid therapy is administered with an IV, and veterinarians will closely monitor a dog’s condition. Dogs will have to stay hospitalized until the veterinarian can confidently determine that they’ve been stabilized.

One of the things a veterinarian monitors is the dog’s electrolyte levels. Once a dog is stabilized, the veterinarian will continue to monitor it post-treatment.

Low-Sodium Diet

Another treatment for hypernatremia that a dog may undergo after being stabilized and discharged is eating a low-sodium diet. This is usually a temporary diet that further helps to bring a dog back to recovery.

Several dog food companies produce low-sodium meals in both dry and wet food. Make sure to communicate clearly with a veterinarian about which brands will work best for your dog and closely monitor your dog’s condition.

Make sure to contact a veterinarian if your dog has any difficulty eating and ingesting the food or starts to show a recurrence of previous hypernatremia symptoms.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our 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


3. Chlorine Ingestion

If a dog consumes too much pool water, it is not only at risk of developing hypernatremia, but will also suffer consequences from the ingestion of chlorine. The level of intoxication and damage corresponds with the amount of chlorine present in the pool. To prevent this, you should be mindful when playing with your dog at the swimming pool. If your dog has developed the habit of drinking water from the pool, you need to address this before it causes a health problem. Your dog should always have access to fresh and clean drinking water.

Signs of Chlorine Ingestion

If you suspect your dog has ingested pool water, watch out for the following symptoms:
  • Nausea
  • Vomiting
  • Erosion of esophagus
  • Stomach irritation
  • Ataxia
  • Weakness
  • Hyponatremia

If you notice any signs suggesting that your dog is intoxicated from drinking pool water, please do not hesitate to bring it to the veterinarian for evaluation and treatment.

How To Prevent Water Intoxication

Water intoxication can place a dog in a dangerous situation and may even have fatal consequences. So, it’s best to protect your dog from it and take preventative measures to avoid it entirely.

When playing with your dog in the pool, lakes or oceans check to make sure your dog isn’t swallowing large amounts of water. If your dog is swimming and having difficulty keeping its head above water, consider purchasing a life vest.

When you take your dog to play, always make sure to bring a water bowl and plenty of fresh water for your dog to stay hydrated. This can greatly help avoid both dehydration and water intoxication.

Another preventative measure you can take is to provide frequent breaks while your dog plays in the water. Even if your dog is having a lot of fun, it’s best to err on the side of caution and let your dog rest and stay out of the water for a few minutes before returning to play. This can also help you to monitor your dog and look for any signs of distress or water intoxication.

dog drinking water
Image By: Zivica Kerkez, Shutterstock

dogster paw dividerConclusion

Water intoxication can quickly develop into a serious condition with long-term or fatal effects. So, it’s best to be prepared before having your dog play with water. Make sure to know what signs to look for and have information on nearby emergency animal hospitals just in case an urgent situation occurs.

With the weather getting warmer and the summer months soon arriving, it’s important to keep your dog safe so that you can have a fun-filled summer with many happy memories.


Featured Image Credit: Lindsay Helms, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.


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

Do Dogs Like White Noise? Facts & Benefits

You may have heard about dog owners leaving the radio or television playing softly in the background to help ease the silence when...

Do Beagles Make Good Pets? Pros, Cons & Advice

Of the 201 breeds registered in the American Kennel Club, the Beagle is ranked as the eighth most popular breed. The AKC notes...

Does a Cavalier King Charles Spaniel Shed a Lot? Vet-Verified Tips, Maintenance & FAQ

The Cavalier King Charles Spaniel is a regal breed with a gentle nature and the athleticism of a sporting dog. These dogs are...

German Sheprador Dog Breed: Info, Pictures, Temperament & Traits

The German Sheprador is a combination of two extremely popular breeds. The German Shepherd and Labrador Retriever are constantly finding themselves in the...

More related

9 Best Dog Foods for a Yorkie Poo in 2026 – Reviews & Top Picks

If you are the lucky owner of a Yorkie Poo, you are familiar with how such a large personality can come in a...

Can Dogs Eat Sourdough Bread? Vet-Approved Facts & Risks

Sourdough bread is a popular type of bread that many people enjoy. During the pandemic, many people picked up the hobby of breadmaking...

11 Vet-Verified Reasons to Get a Dog: Why They Are the Best Pets

While any avid owner can gladly expound on the meaning their pets bring into their lives, would-be pet parents can’t always see the...

Are Bath & Body Works Candles Safe for Dogs? Vet-Verified Facts & Safety Guide

If Bath and Body Works is your go-to source for gifts and home goods, you may be wondering if the brand’s candles are...

Keep reading

9 Cranberry Dog Treats Recipes to Make for Your Pup

Check with a veterinarian before adding any new foods to your pet’s diet, particularly if your pet has any underlying health conditions or is on a special diet. If you love baked goods and making all sorts of yummy snacks...

cranberry dog cookie treats

Can Dogs Eat Dairy? Vet-Verified Nutritional Guide & FAQ

If your dog has ever expressed interest in sharing your bowl of ice cream or glass of milk, you know how tough it can be to say “no” to them. But is sharing dairy products with your dog safe? Unfortunately,...

Can Dogs Eat Dairy

What Is Turkey Meal in Dog Food? Vet-Verified Facts & Safety Info

You might be concerned about how safe turkey meal is and why pet food companies don’t just use more real turkey meat. Turkey meal and other meat meals are common ingredients found in dog food. Most dog food companies put...

labrador retriever dog eating its food from a bowl

10 Best Affordable Puppy Foods in 2026 – Reviews & Top Picks

How can you not fall instantly in love with adorable, roly-poly puppies? But puppies and of course, dogs, end up being expensive to take care of, so it’s always helpful to find ways to save money. Considering that one of...

jack russell terrier dog eating from bowl

Lamb vs. Chicken vs. Salmon Dog Food: Pros, Cons & Differences

In this article, we’ll look at three of the most common protein sources found in commercial dog food: lamb, chicken, and salmon. Chicken is by far the most widely used protein. In fact, some chicken components may even be found...

Lamb vs chicken vs salmon dog food ft

Can Dogs Eat Rice Cakes? Vet-Verified Nutrition Facts & FAQ

Rice cakes are a very popular snack that is often used as a lower-calorie alternative to bread, crackers, and chips. Since we frequently find ourselves wondering what foods in our pantry are safe for our dogs to eat, it’s important...

Can Dogs Eat_Rice Cakes

Do Dogs Need Vitamin E? Vet-Verified Benefits & Risks

Dogs need vitamin E, as it’s an essential nutrient that provides antioxidants that protect against free radical damage. Free radicals are negatively charged atoms released during your dog’s normal metabolic processes. But when dogs or humans are ill or under...

Vitamin E capsules

Can Dogs Eat Nectarines? Vet-Verified Facts & Safe Alternatives

As pet parents, we are responsible for knowing what types of foods are safe for our beloved animals to eat. When it comes to dogs, we have to be very cautious not to offer certain foods or leave them out...

Can Dogs Eat Nectarines