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.

Dehydration in Dogs: Vet-Reviewed Warning Signs & What to Do

dog panting outdoor

Dehydration in dogs is not to be taken lightly. Indeed, a severely dehydrated canine faces significant risks to their health, which can lead to serious complications if not resolved. That is why, as a responsible and attentive pet parent, you should understand the causes, signs, and consequences of dehydration in dogs and how to prevent it and manage it effectively.

Read on as we explore the different factors that can contribute to dehydration in canines, the telltale signs to look out for, and the essential steps to take when caring for a dehydrated canine companion.

divider single dog paw oct 2024

What Is Dehydration in Dogs?

Dehydration in a dog occurs when there is an excessive loss of water and electrolytes from the body, leading to an imbalance of fluids. This can happen for various reasons, such as illness, overheating, inadequate water intake, vomiting, diarrhea, or excessive urination.

sick male beagle dog lying on the sofa
Image Credit: Przemek Iciak, Shutterstock

What Are the Signs of Dehydration in Dogs?

The clinical signs of dehydration in dogs may include:
  • Sunken eyes
  • Dry gums and mouth
  • Lethargy or weakness
  • Loss of skin elasticity on the back of the neck
  • Decreased urine production or darker urine
  • Panting or increased heart rate
  • Loss of appetite

Dehydration can be serious and even life threatening if left unattended. You’ll need to regularly provide your dog with water and monitor their hydration status, particularly in hot weather or when they are ill. If you suspect that your dog is dehydrated, seek veterinary care promptly. Treatment typically involves fluid therapy to rehydrate your dog and address any underlying causes of dehydration.

If you’re uncertain whether your dog is consuming sufficient water or find it challenging to encourage your dog to drink, we recommend scheduling a consultation with a veterinarian for expert guidance on the subject.

Did you know you can speak to a veterinarian without having to travel? Just head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

What Are the Causes of Dehydration in Dogs?

Dehydration in dogs can be caused by various factors, including:
  • Inadequate water intake: If a dog doesn’t drink enough water, either due to restricted access to water or simply not feeling thirsty, they can become dehydrated.
  • Illness: Certain illnesses, such as gastrointestinal infections, kidney disease, diabetes, or fever, can lead to dehydration through vomiting, diarrhea, increased urination, or decreased water intake due to reduced appetite.
  • Heatstroke: Dogs can quickly become dehydrated if they’re exposed to high temperatures for extended periods without access to shade or water. Heatstroke can lead to rapid fluid loss through excessive panting and sweating.
  • Extensive exercise: Intense physical activity, particularly in hot weather, can cause dogs to lose a significant amount of fluids through panting and sweating, leading to dehydration if adequate water isn’t consumed to replace lost fluids.
  • Medication: Some medications may increase urine production or cause vomiting or diarrhea, which can lead to dehydration as a side effect.
  • Trauma or injury: Severe injuries, such as burns or extensive wounds, can cause fluid loss, leading to dehydration if not treated promptly.
  • Environmental factors: High altitude, dry climates, or exposure to dry, windy conditions can also increase the risk of dehydration in dogs.
dog drinking water from collapsible bowl
Image Credit: ubaru, Shutterstock

How Do I Care for a Dog With Dehydration?

Besides first and foremost following the appropriate treatment established by a veterinarian, caring for your dehydrated dog involves several steps.

Here's what you can do:
  • Seek veterinary care: If your dog is severely dehydrated or showing signs of illness like persistent vomiting, diarrhea, lethargy, or weakness, it’s crucial to seek veterinary care promptly. The vet can assess the severity of the dehydration, determine the underlying cause, and provide appropriate treatment, which may include fluid therapy, medications, or other interventions.
  • Follow the vet’s recommendations: Listen to the vet regarding treatment, medication, and follow-up care to ensure that your dog fully recovers from dehydration and any underlying health issues.
  • Provide fresh water: Make sure your dog has access to clean, fresh water at all times.
  • Consider giving them an electrolyte-enhanced fluid: If your dog is not vomiting, you may try giving them an electrolyte solution. However, be sure to check with a veterinarian
  • Monitor fluid intake: Keep track of how much water your dog is drinking. If they’re not drinking enough on their own, you may need to syringe-feed small amounts of water or electrolyte solution to ensure that they stay hydrated.
  • Adjust diet: Offer bland, easily digestible food, such as boiled chicken and rice, to encourage eating and help settle their stomach if they’re experiencing vomiting or diarrhea.
  • Keep them cool: If your dog is suffering from dehydration due to heatstroke or hot weather, move them to a cooler environment, and provide access to shade and water. You can also wet their fur with cool water or use a fan on a low setting to help lower their body temperature.

Overall, providing prompt care and addressing dehydration early can help prevent complications and promote your dog’s recovery.

dogster paw divider

When Should I Seek Veterinary Care for a Dehydrated Dog?

You should seek veterinary care for your dehydrated dog if they are showing signs of illness, such as persistent vomiting or diarrhea, lethargy, or weakness or if you’re unable to rehydrate them at home. In general, if you have any concerns that your dog may be dehydrated, it is best to contact a veterinarian for further advice.

Female vet examining sick and sad Rhodesian ridgeback dog
Image Credit; Zontica, Shutterstock

What to Expect at the Vet’s Clinic

The first step is typically an initial assessment. The veterinary team will conduct a thorough examination of your dog, checking vital signs like temperature, heart rate, and breathing rate. They’ll also assess your pup’s hydration status, looking for signs like dry gums, sunken eyes, and loss of skin elasticity. This initial evaluation helps the vet understand the severity of the dehydration and any other potential health concerns.

After the assessment, the vet will likely take a detailed history from you. They’ll ask about your dog’s medical history, recent illnesses, and changes in behavior, appetite, and water intake, along with any medications or treatments that they may have received. This information helps the vet narrow down the potential causes of dehydration and tailor the diagnostic and treatment plan accordingly.

Based on the examination findings and diagnostic test results such as bloodwork, the veterinarian should be able to develop a treatment plan specific to your dog’s needs. This may include fluid therapy for rehydration, which can involve administering fluids intravenously or subcutaneously. Additionally, the vet may prescribe medications to address underlying health issues, recommend dietary adjustments, or provide other supportive care measures.

Throughout the visit, the vet will educate you on how to care for your dog at home, including administering medications, monitoring hydration status, and recognizing signs of improvement or worsening. Finally, they’ll provide instructions for making follow-up appointments and monitoring your dog’s progress to ensure that they recover fully from dehydration.

Frequently Asked Questions (FAQ)

How Quickly Do Dogs Recover From Dehydration?

If your dog is only mildly dehydrated, they should recover with proper treatment within a few hours. In cases of severe dehydration, recovery may take longer, and your dog likely needs to stay at the vet hospital for a day or so.

vet checking up labrador retriever dog in the vet clinic
Image Credit: SeventyFour, Shutterstock

How Can I Prevent Dehydration in My Dog?

To prevent dehydration in your dog, ensure that they have access to clean, fresh water at all times, especially during hot weather or when they’re ill. Monitor their water intake, provide electrolyte solutions if approved by a veterinarian, and avoid prolonged exposure to extreme heat or other dehydration-inducing factors.

divider dog paws 3 oct 2024

Conclusion

All animals rely on water for their bodies to function properly, and your beloved dog is no exception. Make sure to always keep an eye on how much water your dog is consuming, especially during heatwaves. If you suspect that your dog is dehydrated, don’t delay in contacting a veterinary team so they can get them back on their paws as quickly as possible.


Featured Image Credit: Nicola Pulham, 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

How Much Do Pugs Smell? Facts & FAQ

With their goofy, Instagram-worthy smile and silly shenanigans, Pugs get away with a great deal of mischief. However, if you’re an avid cuddler,...

Field Spaniel Dog Breed: Info, Pictures, Care & More

The Field Spaniel is a sweet, gentle, and docile dog breed with many excellent qualities to offer any family searching for a wonderful...

Plastic vs Metal Dog Bowls: Which Is Right for Your Needs?

One of the first things most people get for a new dog is a food bowl, but with so many different types available,...

10 Best Dog Travel Bags In 2025: Reviews & Top Picks

While it is possible to carry all your pet’s provisions in a standard backpack, a dog travel bag provides compartments and pockets specifically...

More related

Are You Supposed to Brush Your Dog’s Teeth? Our Vet Answers

Dental health is just as important for dogs as it is for us. Without regular dental care, dogs can be prone to yellow...

How Big Are Wolves Compared to Dogs? (Size Chart & Comparison)

Wolves are feared and held in awe, but they have been the subject of many movies, TV shows, and books. While they are...

Shikoku Dog vs. Shiba Inu: Differences Explained (With Pictures)

In this article, we will delve into the realms of the Shikoku dog and the Shiba Inu, two remarkable breeds that have captured...

5 Best Long-Lasting Dog Chews in 2025: Reviews & Top Picks

It is part of a dog’s instinct to want to chew on things. You might not be a fan of it when they...

Keep reading

Dr. Harvey Dog Food Review 2025: Pros, Cons, Recalls & FAQ

Review Summary Dr. Harvey’s Dog Food isn’t a standard dog food. The brand does make a limited range of complete foods, but their main lines are called pre-mix bases that are meant to be combined with protein and oils and...

Dogster_Dr. Harvey Dog Food Review

8 Best Dog Foods for Gassy Dogs in 2025: Reviews & Top Picks

Your dog is unique from head to tail, and that includes their gut! While many dogs can chow down on just about anything, maybe your pup can’t—or at least, not without everyone downwind noticing. Dogs get gassy when their food...

labrador dog eating food indoor

Can Dogs Eat Orange Chicken? Vet-Verified Facts & Better Alternatives

Dogs enjoy eating sweet and savory foods, and most won’t refuse a serving of chicken. It may seem like orange chicken is an ideal food for dogs, and dogs can develop a taste for it. However, it’s not recommended to...

Dogster-Can-Dogs-Eat-Orange Chicken

8 Best Dog Foods for Hair Loss in 2025: Reviews & Top Picks

Shedding is common with some dog breeds, but if you experience more shedding than usual or hair coming out in clumps, leaving behind bald patches, that’s a sign that something is amiss. Whether your dog is suffering from a skin...

a shetland sheepdog shedding a lot

10 Best Fresh Dog Food Delivery Services in 2025 – Reviews & Top Picks

Dog food subscription and delivery services are a convenient way to buy food for your pet, and while they are generally slightly more expensive, they do take most of the hassle out of shopping for your pal’s meals. Luckily, there...

Finny opening the door with the farmers dog delivery

Can Dogs Eat Butter? Vet-Approved Nutrition Advice

It isn’t uncommon to feed your dog a bite or two from your plate; our canine pals are always overjoyed to get a taste of what we’re eating! But not everything we like eating is healthy or safe for our...

Can Dogs Eat Butter

8 Best Dog Foods for Maltese in 2025 – Reviews & Top Picks

Maltese are affectionate, curious, and fearful companions. As one of the oldest breeds in the world, this toy dog is relatively easy to care for. They’re people-pleasers at heart, but they’re also spunky little pups that aren’t afraid of a...

little dog maltese eating food from a bowl at home

10 Best Dog Foods for Bloodhounds in 2025 – Reviews & Top Picks 

Bloodhounds are having a bit of a moment. Trumpet, a 4-year-old bloodhound from Illinois, won Best in Show at this year’s Westminster Kennel Club Dog Show. Dog lovers everywhere are learning what you already know—bloodhounds make amazing pets! Finding the...

bloodhound on the porch