If your dog seems sluggish, tacky-gummed, or off their water on a hot day, you want to act fast and act right. The good news: mild dehydration can often be treated at home with small, frequent sips of water and a few simple tricks. The important news: moderate to severe dehydration is a medical emergency that needs a vet, not a home remedy.
Here is how to tell the difference and exactly what to do, step by step.
How to treat dehydration in dogs at home: the short answer
To treat mild dehydration in dogs at home, offer small amounts of fresh water every few minutes, add an electrolyte solution if your vet approves, and tempt your dog with water-rich foods like wet food or watermelon. Keep them cool and resting, and watch closely. If your dog is weak, vomiting, will not drink at all, or is not improving within a few hours, call your vet right away.
This article covers home care for mild cases only. Dehydration in dogs can come from heat, vomiting, diarrhea, or an underlying illness, so when in doubt, always check with your vet.
First, check how dehydrated your dog is
Before you treat anything, do a quick 10-second check. It tells you whether home care is reasonable or whether you should head to the clinic now. For a deeper rundown, see our guide to the most common dog dehydration signs.
The skin-tent test
Gently lift the loose skin between your dog's shoulder blades, then let it go. In a well-hydrated dog, it snaps back almost instantly. If it falls slowly or stays tented for a second or two, your dog is likely dehydrated. If it barely moves back at all, that is a sign of serious dehydration and you should call your vet immediately.
Check the gums
Press a finger against your dog's gums. Healthy gums are moist and the color returns within about two seconds after you lift your finger. Dry, sticky, or pale gums are a red flag. Combined with a slow skin tent, sticky gums mean your dog needs more than a bowl of water.
How to rehydrate a dog at home, step by step
If the check points to mild dehydration and your dog is alert and able to stand and drink, here is how to rehydrate a dog safely at home. Go slow: letting a thirsty dog gulp a full bowl can trigger vomiting and make things worse.
- Offer small amounts often. Give a few laps or a quarter-bowl of cool, fresh water every 5 to 10 minutes rather than one big bowl.
- Try ice chips. Many dogs will lick ice cubes or crushed ice, which slows their intake naturally and is easy on an upset stomach.
- Add an electrolyte solution. An unflavored pet or pediatric electrolyte solution, diluted and vet-approved, can help replace lost minerals. Alternate it with plain water rather than replacing water entirely. Some owners ask about homemade electrolytes for dogs: a basic mix is cooled, boiled water with a small pinch of salt and sugar, but check the exact ratio with your vet first, since too much salt does more harm than good.
- Tempt a picky drinker. Stir a spoon of low-sodium bone broth into their water, or float a few pieces of kibble or a treat to spark interest. Cool, not cold, water tends to go down easier than ice-cold water.
- Move to cool and calm. Bring your dog indoors or into the shade, limit activity, and let them rest while they rehydrate.
- Recheck in 30 to 60 minutes. Repeat the skin-tent and gum check. Improvement is a good sign. No change, or any worsening, means it is time to call the vet.
If your dog will not drink on their own, you can gently offer water with a needleless syringe or dropper into the side of the mouth, a little at a time, only if your dog is fully alert and can swallow. Never squirt water into the mouth of a drowsy or collapsed dog, as it can go into the lungs.
Hydrating foods and treats that help
Food is an easy way to sneak in fluids, especially for a dog that is bored of plain water. Wet dog food has a high moisture content, and adding a splash of warm water to any meal boosts intake further.
Several dog-safe fruits and vegetables are more than 90 percent water and make great cooling snacks. Seedless, rindless watermelon, cucumber, and strawberries are popular picks. Our guide to whether dogs can eat watermelon covers safe portions and how to serve it. Frozen cubes of these foods double as a fun hot-day treat.
Prevention matters just as much as treatment. On walks, hikes, and car trips, carry water so your dog can sip whenever they need to. A leak-proof travel bottle like the Pawsport portable dog water bottle, which folds out into a bowl in seconds, makes offering small, frequent drinks on the go simple. If you want a target intake number, see how much water a dog should drink per day.
What not to do when your dog is dehydrated
A few well-meant moves can backfire. Keep this short list in mind:
- Skip the Gatorade and sugary sports drinks. They are too high in sugar and sodium for dogs and are not a safe rehydration fix.
- Do not let your dog gulp a huge bowl at once. Rapid drinking after dehydration often leads to vomiting, which loses even more fluid.
- Do not give human medications or supplements to settle the stomach or treat the cause without your vet's guidance.
- Do not wait it out if your dog is vomiting repeatedly, has ongoing diarrhea, or refuses all water. Heat and fluid loss can turn dangerous quickly.
Heat is one of the most common triggers in summer. If your dog is panting heavily and struggling to cool off, read our guide on when dog panting is normal versus a warning sign.
When home care isn't enough: see your vet now
Home treatment is only appropriate for mild cases in an otherwise healthy, alert dog. Call your vet or an emergency clinic right away if you notice any of the following:
- Skin that stays tented, or very dry, pale, or sticky gums
- Lethargy, weakness, stumbling, or collapse
- Sunken-looking eyes
- Repeated vomiting or diarrhea, or refusing all water
- Signs of overheating, such as heavy panting, drooling, or a dazed look
- A puppy, senior, or dog with a known health condition showing any dehydration
Moderate and severe dehydration usually needs fluids given under the skin or into a vein, which only a vet can do. Getting in early is safer and often cheaper than waiting.
FAQ
Can I give my dog Pedialyte?
In mild cases, some vets okay a small amount of unflavored, diluted Pedialyte or a pet electrolyte solution to help replace lost minerals. Because the right amount depends on your dog's size and the cause, ask your vet before giving any, and never use it as a substitute for a vet visit if your dog is clearly unwell.
How do I hydrate a dog that won't drink water?
Try adding low-sodium bone broth or a splash of water to wet food, offering ice chips, or using a needleless syringe to give small amounts into the side of the mouth, only if your dog is alert and can swallow. A dog that refuses all water for several hours needs to be seen by a vet.
How long does it take to rehydrate a dog?
A mildly dehydrated dog often perks up within a few hours of steady, small sips. If you see no improvement after a couple of hours of home care, or your dog gets worse at any point, contact your vet rather than continuing to wait.
Can dogs drink Gatorade?
It is best to avoid it. Gatorade and similar sports drinks are too sugary and salty for dogs and are not designed for their needs. Plain fresh water, or a vet-approved pet electrolyte solution, is the safer choice.
Most cases of mild dehydration clear up with patience, small sips, and a cool place to rest, and a little daily prevention keeps them from happening at all. Keep fresh water within reach at home and on every outing, and when you are away from a faucet, a foldable travel bottle makes it easy to offer a drink the moment your dog needs one. When anything looks worse than mild, trust your gut and call your vet.