We all know how important hydration is—especially during warmer months or after a big play session. For our dogs, water is a vital part of staying healthy and happy. But did you know it’s actually possible for dogs to drink too much water?
While rare, water intoxication is a serious and potentially life-threatening condition that every pet parent should be aware of.
What Is Water Intoxication?
Water intoxication, also known as hyponatremia, occurs when a dog ingests excessive amounts of water in a short period of time. This dilutes the sodium levels in their bloodstream, disrupting normal cell function and causing cells to swell—including those in the brain. It can happen more easily than you think, especially during activities like:
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Playing fetch in the water
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Biting at water from a hose or sprinkler
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Swimming for long periods without breaks
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Gulping large quantities of water after exercise
Symptoms to Watch For
Signs of water intoxication can appear quickly and may include:
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Loss of coordination or stumbling
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Vomiting
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Bloating
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Lethargy
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Glazed eyes
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Pale gums
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Excessive salivation
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Difficulty breathing
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Seizures
If you notice any of these symptoms, seek veterinary attention immediately.
How to Prevent It
The good news is that water intoxication is preventable. Here are some simple steps you can take:
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Supervise your dog during water play
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Take frequent breaks to rest and hydrate slowly
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Limit the amount of time spent in pools, lakes, or with the hose
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Offer small amounts of water frequently, rather than letting your dog gulp large amounts all at once
Treatment and Prognosis
Veterinary treatment for water intoxication often involves medications like Mannitol and diuretics to help reduce swelling and stabilize sodium levels. In many cases, prompt treatment can result in a full recovery. However, delays in treatment can lead to serious complications or even be fatal.
For a more in-depth look at the causes, symptoms, and treatment options for water intoxication in dogs, read this expert article from the American Kennel Club (AKC).
The Bottom Line
While water is essential for your dog’s health, moderation is key—especially during high-energy play. With a little knowledge and close supervision, you can keep your pup safe, happy, and hydrated without going overboard.
Have questions about your dog’s behavior after swimming or water play? Our team is here to help. Reach out to us anytime.