You probably hear your dog lapping up water several times a day, but do you ever wonder whether they’re drinking too much?
Like people, there are plenty of times where increased thirst and water consumption are normal, like during hot weather or after a brisk run. But sometimes, excessive thirst can be a cause of concern. Our vets explain what’s normal, what to look out for if you’re worried, and when to bring your pet in for an exam.
What’s a Normal Amount of Water for My Dog to Drink?
A dog will drink roughly the equivalent of one ounce of water per pound of body weight every day. Dry climates, hot weather, higher physical activity levels, the amount of dry food consumed, and pregnancy or nursing can all make your dog drink more than normal.
While it can be difficult to measure exactly how many ounces your dog laps up, if their water bowl is always empty or your dog needs to urinate more often than usual, it could be a sign of dehydration.
If you’re concerned about your dog’s increased water consumption, track their water intake for 24 hours by measuring how much water you add to their bowl. This will help you get a clearer picture of how much your dog is actually drinking before you start to assume the worst.
Should I Be Worried If My Dog Is Always Thirsty?
Occasional instances of increased thirst are generally not a problem for dogs. It’s when that increased thirst doesn’t level out again that you need to pay closer attention. Many dogs may show additional signs or symptoms besides drinking more water if there’s a health problem.
Health conditions associated with excessive thirst include:
- Diabetes mellitus
- Cushing’s disease
- Kidney disease
- Urinary tract infections
Excessive Thirst in Dogs: When to Call the Vet
While it isn’t typically necessary to call the veterinarian every time your pet drinks extra water in a day, there are some serious signs of concern that require prompt medical care.
Contact your vet right away if:
- Your dog’s water intake suddenly doubles
- They are having accidents indoors
- They have vomiting or diarrhea that won’t stop
- Your dog is acting lethargic
Your vet may direct you to bring your dog in for a physical exam, including blood tests and urinalysis. While it can be extremely stressful waiting on lab work, getting an early diagnosis will mean you have more treatment options and a better chance of recovery.
Excess thirst from time to time is normal, but if you think your dog is drinking too much water, you should call a vet. You know your pet better than anyone, so trust your instincts and start tracking your dog’s water intake if something seems off to you. It’s an easy way to get an objective measurement, and it will give your vet a better understanding of what’s going on. At Anasazi Animal Clinic, we’re ready to help. Contact us to request an appointment today.
Photo by Karsten Winegeart on Unsplash used with permission under license for commercial use 02/15/2026.