Dog Not Drinking Water: Home Care and When to Worry

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-08-14

Key Takeaways

• Urgent Veterinary Intervention is Critical for Specific Clinical Signs: Immediate emergency veterinary care is mandatory for dogs exhibiting vomiting, diarrhea, abdominal pain or distension, collapse, inability to stand, seizures, pale/gray gums, or severe panting, as these indicate potentially life-threatening conditions such as intestinal obstruction, bloat, or severe infection.
• Dehydration Assessment Requires Objective Parameters: Home assessment of dehydration involves evaluating skin elasticity (slow tenting), gum moisture (dry/tacky), gum color (pale/gray), sunken eyes, and capillary refill time (prolonged >2 seconds), with persistent abnormalities warranting veterinary consultation.
• Home Care Strategies Focus on Palatability and Fluid Intake: For otherwise healthy dogs, encouraging water intake can involve offering fresh water in varied bowls, utilizing pet fountains, adding palatable low-sodium broths or tuna juice, offering ice cubes, or increasing fluid content through wet food or soaking kibble.
• Delayed Veterinary Consultation Increases Risk: A dog refusing water for over 12 hours, or exhibiting lethargy, weakness, loss of appetite, or altered urination patterns, necessitates a same-day veterinary appointment to rule out underlying systemic illnesses like kidney disease, diabetes, or urinary tract infections.
• Avoidance of Potentially Harmful Home Remedies is Paramount: Owners must refrain from forcing water via syringe (risk of aspiration pneumonia), administering human electrolyte drinks (sugar/sweetener toxicity), or giving human medications, as these actions can mask serious conditions or cause iatrogenic harm.
• Proactive Monitoring and Veterinary Collaboration are Essential for Prevention: Establishing a baseline of normal water intake, ensuring constant access to fresh water, incorporating moisture-rich foods, and scheduling regular veterinary check-ups are crucial for early detection and management of conditions that can lead to reduced drinking.

If your dog has stopped drinking water, act quickly but stay calm. Most dogs will drink again within a few hours if you offer fresh water in a clean bowl, add a little flavor, or switch to a different water source. However, some causes of not drinking are serious and need immediate veterinary care. Go to an emergency vet right away if your dog is vomiting, has diarrhea, is collapsed, has a bloated or painful belly, is panting heavily without relief, or cannot stand. These signs can point to life-threatening conditions like a blockage, bloat, or severe infection. Do not wait to see if water intake improves on its own when any of these are present.

For dogs that are otherwise acting normal, you can safely try several home strategies for a short period. Offer water in a wide, shallow bowl instead of a deep one. Some dogs prefer running water, so try a pet fountain or let the tap run slowly. Add a small amount of low-sodium chicken broth, tuna juice, or plain water from a can of unsalted vegetables to make the water more appealing. You can also offer ice cubes or frozen broth cubes as a treat. If your dog is eating, you can add water to their food to boost total fluid intake. Monitor how much they drink over the next 6 to 12 hours and watch for any signs of dehydration listed below.

Is This an Emergency?

Use this table to decide your next step. When in doubt, call your veterinarian. They can hear your dog's history and advise whether you need to come in.

{
 "type": "triage",
 "title": "Urgency triage by severity of signs",
 "tiers": [
  {
   "tier": "danger",
   "label": "Go to an emergency vet now",
   "signs": [
    "Vomiting, diarrhea, a swollen or hard belly, retching without producing anything, obvious pain when you touch the abdomen, collapse, inability to stand, seizures, pale or gray gums, rapid breathing at rest, or a known exposure to toxins like antifreeze or grapes"
   ],
   "action": [
    "Do not offer food or water",
    "Do not try home remedies",
    "Transport your dog to the nearest open emergency clinic immediately"
   ]
  },
  {
   "tier": "warn",
   "label": "Book a same-day appointment",
   "signs": [
    "Not drinking for more than 12 hours, dry or sticky gums, sunken eyes, skin that stays tented when gently pinched, lethargy, weakness, loss of appetite, or urinating much more or much less than usual"
   ],
   "action": [
    "Call your regular vet this morning or afternoon",
    "Keep offering small amounts of water but do not force your dog to drink"
   ]
  },
  {
   "tier": "safe",
   "label": "Watch at home for a defined period",
   "signs": [
    "Dog is otherwise bright, playful, eating normally, and has only skipped water for a few hours, especially after a change in routine, travel, or a new water source"
   ],
   "action": [
    "Try the home strategies below for up to 6 to 12 hours",
    "If your dog still refuses water after that time, call your vet for advice"
   ]
  }
 ]
}

What Is Most Likely Going On

The most common reason a dog stops drinking is simple: the water tastes, smells, or feels different. Dogs have a much stronger sense of smell than people do. A plastic bowl that has been washed with strong soap, a bowl that has sat in the sun and grown algae, or tap water that has changed in mineral content can all put a dog off. Some dogs are also sensitive to the temperature of water. Very cold water can be startling, while lukewarm water that has been sitting out may seem stale.

Another common cause is a mild stomach upset that has not yet caused vomiting. The dog may feel slightly nauseated and avoid drinking because water makes the stomach feel worse. This often resolves on its own within a few hours. The MSD Veterinary Manual notes that digestive upset in dogs can range from brief, self-limiting episodes to conditions that require veterinary attention, so you need to watch carefully for progression.

What Else It Could Be

Not drinking can also be a sign of an underlying illness. Kidney disease, diabetes, and urinary tract infections can change a dog's thirst and urination patterns. Some dogs with these conditions drink more, not less, but others will drink less if they feel unwell. Pain from dental disease, an ear infection, or arthritis can also make a dog less interested in moving to the water bowl. A dog with a fever from any infection may refuse water because they feel miserable.

Less common but serious causes include a foreign object stuck in the throat or esophagus, a tumor in the mouth or throat, or a condition called megaesophagus, where the esophagus is enlarged and cannot move food and water into the stomach normally. These conditions often come with other signs like drooling, gagging, or difficulty swallowing. The AVMA pet owner resources advise that any persistent change in drinking or eating behavior deserves a conversation with your veterinarian, because many of these causes cannot be identified without an examination.

How to Tell If Your Dog Is Dehydrated

Dehydration means the body does not have enough water to function normally. You can check a few things at home. Gently lift the skin between your dog's shoulder blades and let it go. In a well-hydrated dog, the skin snaps back instantly. If it returns slowly or stays in a ridge, that is a sign of dehydration. Look at your dog's gums. They should be pink and moist, like a wet sponge. Dry, sticky, or pale gums are a concern. Check the eyes. Sunken eyes, where the eyeball seems to sit deeper in the socket, are another sign.

Capillary refill time is a useful test. Press your finger on your dog's gum until the area turns white, then release. Count how many seconds it takes for the pink color to return. Normal is under two seconds. Longer than that can mean poor circulation from dehydration or another problem. The MSD Veterinary Manual Pet Owner Version explains that dehydration can progress to shock if not corrected, so these checks matter.

Safe Home Hydration Strategies

Offer small amounts of water frequently instead of one large bowl. A tablespoon every 15 minutes is easier for a nauseated dog to handle. You can also offer unflavored Pedialyte in small amounts, but do not give it to a dog with kidney disease or heart disease without asking your vet first. Never force water into a dog's mouth with a syringe unless your veterinarian has told you to do so. Forcing water can cause aspiration, where liquid goes into the lungs, which can lead to pneumonia.

If your dog is eating, switch to wet food or soak dry kibble in warm water for 10 minutes before serving. You can also offer plain boiled chicken and rice with extra water mixed in. These foods provide both calories and fluid. Monitor your dog's urination. A dog that is drinking enough should urinate within a few hours of eating or drinking. If you see no urine for more than 12 hours, call your vet. The AAHA pet owner resources emphasize that monitoring output is just as important as monitoring intake when assessing hydration.

What You Can Safely Do at Home Right Now

If your dog is otherwise bright, eating normally, and has no vomiting or diarrhea, you can try several safe strategies to encourage drinking. Offer fresh, cool water in a clean bowl. Some dogs prefer running water, so a pet fountain or a slowly running faucet can help. You can also offer ice cubes to lick or crunch, which adds water without overwhelming the stomach.

Wet food is one of the most effective ways to increase fluid intake. Canned dog food can contain 70 to 80 percent water. You can also add warm water to dry kibble and let it soak for a few minutes. Broth can help, but it must be plain, unsalted chicken or beef broth with no onion, garlic, or added seasonings. Those ingredients are toxic to dogs. Offer a small amount and watch for any upset stomach.

You can also try flavoring the water itself. A teaspoon of broth or a splash of tuna juice in the water bowl may tempt a reluctant drinker. Change the water several times a day, because some dogs refuse stale water. Wash the bowl daily with hot, soapy water.

What You Must Not Do

Do not force water into your dog's mouth with a syringe unless a veterinarian has specifically instructed you to do so. Forcing liquid can cause aspiration, which means fluid entering the lungs. That can lead to pneumonia and can be life-threatening.

Do not give human electrolyte drinks such as sports drinks. They often contain high levels of sugar and artificial sweeteners, some of which are dangerous to dogs. Do not give Pedialyte or similar products without explicit direction from your veterinarian, because the correct amount depends on your dog's weight, condition, and the underlying cause of the dehydration.

Do not give any medication to stimulate thirst or treat an underlying condition. Many causes of reduced drinking require a diagnosis first. Giving the wrong medication can mask serious disease or cause harm.

What to Measure and Write Down Before Calling a Vet

Before you contact a veterinarian, gather specific information. This helps the vet give you accurate advice and saves time if you need to go in.

Write down how much water your dog normally drinks in a day, and how much they have taken in over the past 12 to 24 hours. Measure in cups or milliliters. Note whether they are eating normally, and how much. Count how many times they urinate in a day, and whether the urine looks dark or concentrated. Check their gum color and moisture. Gums should be pink and slick, not pale, sticky, or dry. Time how long it takes for a pinch of skin on the back of the neck to snap back into place. It should return in under two seconds.

Also note any other signs, even mild ones. These include lethargy, panting, weakness, changes in appetite, vomiting, diarrhea, or straining to urinate. Write down when each sign started and whether it has gotten worse.

Hydration Checklist and When to Call the Vet

Use this checklist to decide your next step. If any item in the right column applies, call your veterinarian now. If multiple items apply, or if your dog seems to be getting worse, seek emergency care immediately.

If your dog has not drunk water for 24 hours, call your veterinarian even if they seem fine. If they are also vomiting, have diarrhea, or show any sign of pain, do not wait. These signs can indicate conditions that require urgent treatment, including kidney disease, pancreatitis, or an intestinal blockage. The MSD Veterinary Manual Digestive Disorders of Dogs and Cats explains that reduced drinking combined with gastrointestinal signs can point to several serious conditions that need in-person evaluation.

What a Veterinary Visit Usually Involves

When you bring your dog in, the veterinarian will start with a physical examination. They will check your dog's temperature, heart rate, breathing, gum color, and skin elasticity. They will gently feel the abdomen to check for pain, masses, or an enlarged bladder. They may also look at the eyes and inside the mouth.

The vet will ask about your dog's history, including how much they drink and eat, urination habits, any medications, and any possible exposure to toxins. Be ready to share the notes you took at home.

Common tests include bloodwork to check kidney and liver function, electrolyte levels, and blood cell counts. A urine sample checks for infection, kidney disease, or diabetes. Imaging such as X-rays or ultrasound may be used if the vet suspects a blockage, tumor, or other structural problem. These tests help identify the underlying cause, because reduced drinking can stem from many conditions, including kidney disease, dental pain, nausea, or neurological issues. The AVMA Pet Owner Resources describe how veterinarians use a combination of history, examination, and testing to reach a diagnosis.

The cost of a visit varies widely by region and clinic. A basic exam may cost roughly 50 to 150 dollars. Bloodwork and urine testing can add 100 to 300 dollars. Imaging can add several hundred more. These are general ranges only, not quotes. Prices depend on your location, the clinic, and the complexity of the case. Ask for an estimate before agreeing to tests.

When an Online Vet Can Help, and When It Cannot

Some situations in this article require hands-on care and must not be handled remotely. If your dog is vomiting, has diarrhea, cannot keep water down, has pale gums, is breathing fast, is collapsing, or has not urinated in 12 hours, you need in-person emergency care. A remote consultation cannot examine these dogs safely. Do not use an online vet as a substitute for emergency treatment.

A remote consultation is genuinely useful for early or mild cases. If your dog is otherwise well and simply drinking less, an online vet can take a detailed history, watch your dog move on video, and advise whether a visit is needed. It is also helpful for rechecks on a known problem, questions about medication side effects, or follow-up on a chronic condition like early kidney disease.

A remote vet can see visible signs on video, ask questions, and give advice. In many states, they can prescribe medication, but prescribing rules differ by state. Some states require an in-person examination before a veterinarian can prescribe. A remote vet cannot palpate the abdomen, listen to the chest, take a temperature, run bloodwork, or image anything. Those limitations matter. If the vet cannot physically examine your dog, they cannot rule out serious conditions. The AAHA Pet Owner Resources note that accredited practices emphasize the value of a full physical examination for accurate diagnosis. Use remote care for guidance, not for a definitive diagnosis when your dog is genuinely unwell.

Common Mistakes Owners Make and What to Do Instead

When a dog stops drinking, well-meaning owners often try things that can backfire. Here are the most frequent errors and safer alternatives.

The most common mistake is waiting too long. Dogs hide illness well. By the time a dog looks obviously sick, dehydration may already be advanced. If you are unsure, call your veterinarian. A short phone call costs little and can prevent a serious problem.

How to Reduce the Chance of It Happening Again

Prevention starts with knowing your dog's normal drinking pattern. Measure how much water your dog drinks over a few normal days. Most dogs drink roughly half an ounce to one ounce of water per pound of body weight daily, but this varies with activity, weather, and diet. Knowing the baseline helps you spot a drop early.

Keep water fresh and clean. Wash the bowl daily. Some dogs refuse stale or warm water. Change it twice a day, more often in hot weather. Place multiple bowls around the house, especially where your dog sleeps and eats. Some dogs drink more from a moving source, so a pet water fountain can help.

Feed wet food if your dog accepts it. Canned food is about 70 to 80 percent water. Mixing wet food with dry kibble adds moisture without forcing your dog to drink. Add water to dry food and let it soak for a few minutes before serving.

After exercise or on hot days, offer water before your dog gets thirsty. Thirst lags behind actual need. Carry a collapsible bowl on walks. Rinse and refill it often.

Schedule regular veterinary checkups. Many conditions that reduce thirst, such as kidney disease or diabetes, are easier to manage when caught early. The American Veterinary Medical Association recommends routine wellness visits as the foundation of preventive care. Your veterinarian can also help you track your dog's weight and hydration status over time.

What Recovery and Ongoing Management Usually Look Like

Recovery time depends on the cause. A dog that simply refused stale water may drink normally within hours once offered fresh water. A dog with a mild infection may improve within two to three days of treatment. A dog with a chronic condition like kidney disease may need lifelong management.

For mild dehydration treated at home, expect improvement within 12 to 24 hours. Your dog should show more energy, a moist mouth, and normal skin elasticity. Urine should return to a pale yellow color. If these signs do not improve within a day, call your veterinarian.

For dehydration treated at the clinic, your dog may receive fluids under the skin or through an IV. Most dogs feel noticeably better within a few hours of fluid therapy. Some go home the same day. Others stay overnight if the underlying cause needs monitoring.

Ongoing management depends on the diagnosis. If your dog has kidney disease, your veterinarian may recommend a special diet, more frequent water changes, and regular blood tests. If the cause was a one-time stomach upset, your dog may simply need a few days of bland food and close watching.

The MSD Veterinary Manual notes that digestive disorders in dogs can range from brief upsets to chronic conditions requiring long-term care. Your veterinarian will tell you what to expect based on your dog's specific situation.

Frequently Asked Questions

My dog is eating but not drinking. Is that an emergency?

Not always, but it needs attention. Dry food contains little moisture, so your dog may not be getting enough water overall. Try adding water to the food, offering ice cubes, or switching to wet food. Check for dehydration signs like dry gums or loss of skin elasticity. If your dog eats normally but refuses water for more than 24 hours, or shows any dehydration signs, call your veterinarian.

How much water should a dog drink per day?

A general guide is about half an ounce to one ounce of water per pound of body weight daily. A 20 pound dog might drink 10 to 20 ounces. But this varies with activity, weather, and diet. Dogs eating dry food drink more than dogs eating canned food. The best measure is your dog's own normal pattern. Track it for a few days so you can spot changes.

Can I give my dog Pedialyte?

Pedialyte is not formulated for dogs. It contains sugar and electrolytes in amounts designed for humans. Some veterinarians approve it in small amounts, but others prefer plain water or veterinary electrolyte products. Never guess at a dose. Call your veterinarian for guidance specific to your dog's size and condition.

How long can a dog go without water?

A healthy dog should not go more than 24 hours without water. Many dogs show dehydration signs much sooner, especially in hot weather or after exercise. If your dog has not drunk for 12 hours, start offering water in different ways. If there is still no interest after 24 hours, seek veterinary care.

Will my dog drink more if I add flavor to the water?

Some dogs will. Unsalted chicken or beef broth, a small amount of tuna juice, or a splash of low sodium broth can encourage drinking. Avoid anything with onion, garlic, or artificial sweeteners. Change flavored water frequently to prevent bacterial growth. If your dog drinks the flavored water well, gradually reduce the flavor over several days.

What if my dog drinks too much after a period of not drinking?

A dog that suddenly gulps large amounts after being dehydrated can sometimes vomit or develop an electrolyte imbalance. Offer small amounts frequently instead of one large bowl. Give a few tablespoons every 15 to 30 minutes. If your dog vomits, stop offering water and call your veterinarian, as vomiting changes the situation and requires different care.

Related Clinical & Scientific Guides

• Cat Straining to Poop but Only Passing Mucus: Causes and Care
• Cat Upset Stomach: Home Remedies That Are Safe
• Cat Straining to Poop but Nothing Comes Out: Emergency or Not?

References and Further Reading

• MSD Veterinary Manual Digestive Disorders of Dogs and Cats
• AVMA Pet Owner Resources
• MSD Veterinary Manual Pet Owner Version
• AAHA Pet Owner Resources

Related Articles

• Dog Not Drinking Water: Causes and How to Encourage Hydration
• Dog Not Eating: When to Worry and What to Do
• Dog Not Drinking Water: What the Vet Will Do and How Much It Costs
• Dog Vomiting and Diarrhea: Home Care or Emergency?
• Dog Constipation Home Remedies That Actually Work

This article is general educational information for pet owners. It is not a substitute for veterinary diagnosis, examination, or treatment. If your pet is showing severe or rapidly worsening signs, contact an emergency veterinary hospital immediately.