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Why is Your Dog Drinking a Lot of Water?

01/30/2025
Acacia Pet Clinic Team
Pet Health
DogsHealthHydrationWellness

Is your dog drinking more water than usual? Find out the possible causes and learn why a visit to Acacia Pet Hospital is important for a proper diagnosis.

Why is Your Dog Drinking a Lot of Water?

Noticing your dog drinking more water than usual can be concerning for any pet owner. While increased thirst can sometimes be harmless, like on a hot day, it can also signal an underlying health issue. Understanding the potential reasons behind your dog's increased water intake is crucial for their well-being.

How Much Water Should Dogs Drink Daily?

Generally, a dog should drink about 1 ounce of water per pound of body weight per day. For example, a 50-pound dog should drink approximately 50 ounces of water daily. However, this can vary based on factors like age, breed, activity level, and diet. If your dog consistently drinks significantly more than this amount without an obvious reason, it could be a sign of excessive thirst, also known as polydipsia.

6 Reasons Why Your Dog Might Be Drinking Excessively

When you find yourself asking, 'why is my dog drinking so much water?', it's important to consider various possibilities. While some causes are benign, others require veterinary attention. Here are six common reasons for increased water consumption in dogs:

1. Dehydration or Hot Weather

One of the most straightforward reasons for increased thirst is dehydration, often caused by hot weather or intense physical activity. Dogs lose water through panting, especially when they're hot or exercising. Symptoms of dehydration can include increased thirst, excessive panting, and dry gums. Always ensure your dog has constant access to fresh water, especially during warm days or after playtime.

If you suspect your dog is severely dehydrated or showing signs of heatstroke (such as drooling, lethargy, restlessness, nausea, vomiting, diarrhea, or breathing difficulties), move them to a cool area and offer water. Do not force them to drink. Contact Acacia Pet Clinic immediately at (408) 264-6354 for advice, as heatstroke is a medical emergency.

3. Your Dog is Bored

There must be a reason for the excessive thirst, right? Not always. It turns out that pups, especially younger ones, can start drinking water for no reason other than a behavioral problem linked to boredom.

In fact, a lack of suitable mental and physical stimulation can lead many pets down the path of directing their energy into excessive behaviors, whether that's too much barking, biting, or drinking. If you think boredom is making your dog drink a lot more water than usual, here are a few brain games and puzzles for dogs that will help keep your pet entertained.

4. Your Dog Has Eaten Certain Saltier Foods

Owners with pups that are always thirsty might want to pay attention to what their pets are eating too. If they keep getting scraps of human food from the dinner table, these could be too salty for them. Another important consideration is that pets on dry food are likely to drink more water than those eating wet food. Discuss your dog's diet and excessive thirst with our doctors at Acacia Pet Clinic for the best help and advice.

5. Your Dog's Medication Can Be a Cause

Medications such as steroids could also be the reason why your dog is drinking a lot of water. As always, our doctors will be able to recommend the best next steps. This could involve trying a different treatment or changes in their diet that help incorporate more wet food. So, don't hesitate to consult our doctors at Acacia Pet Clinic when you notice any changes in your dog's drinking habits.

6. Your Dog Has an Illness

Drinking more water than usual could also be a sign of an underlying illness. Unfortunately, many conditions can be associated with this symptom. Anything from dog diabetes to hormonal diseases such as Cushing's disease and Addison's disease could be behind your pet's excessive thirst. Drinking lots of water is also on the list of symptoms for canine kidney insufficiency and liver disease.

What Should I Do if My Dog is Drinking Too Much?

Although it can be concerning if you notice a change in your dog's drinking habits, there are ways to minimize excessive drinking. First, you need to discover the reason why your dog is drinking more than usual. If you think it is because they are just an energetic dog who tends to spend most of their day on high alert, then this is usually nothing to worry about.

However, excessive drinking can also be caused by underlying health conditions. If you are struggling to determine why your dog is drinking more than usual, then you should consult our doctors at Acacia Pet Clinic.

What Not to Do if Your Dog is Drinking Excessively

Drinking excessive amounts of water can prompt excessive urination too, which may give you a reason to act. However, do not restrict your dog's water consumption by moving water away from them. This may result in them becoming dehydrated, which can make their condition worse.

Although there are many possible reasons for your dog's extra trips to their water bowl, some more serious than others, it is important not to dismiss excessive thirst as just a simple change in their habits. Get a feel for what quantity of water your dog usually consumes in a day, and if they start to go over their normal limit, look out for any other symptoms as well. This information will help our doctors at Acacia Pet Clinic decide on the best plan for diagnosis and management.

How to Keep an Eye on My Dog Drinking a Lot

If you want to monitor the amount your dog is drinking to determine whether they are dehydrated or suffering from something else, it is easier to notice any changes if your dog develops a water-drinking routine.

Setting up a water drinking routine for your dog is simple:

  • Pay attention to the amount you put in the bowl every time you fill it up, and make sure to see how much is left at the end of the day.
  • Refill your dog bowl at around the same time every day and leave it down in the same place.
  • Make sure to fill the bowl to the same amount each time, and to also always use the same bowl.

Water is very important to your dog's overall health; never leave your dog without water. If you are concerned about your dog drinking a lot, then you should call us at Acacia Pet Clinic to make sure they aren't suffering from something detrimental.

If you need more help or have any questions, call us at Acacia Pet Clinic, (408) 264-6354, 4486 Pearl Ave, San Jose, CA 95136. Hours: Monday-Friday: 8:00 am – 5:00 pm or visit us online.

Acacia Pet Clinic is proud to provide expert veterinary care to the San Jose community. We are honored to serve pets and their owners from Willow Glen, Cambrian Park, Blossom Valley, Almaden Valley, and the surrounding South Bay neighborhoods.

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