Why is my dog drinking so much water? 

As a pet owner, you may have noticed your dog drinking more water than usual and wondered if it’s something to be concerned about. While dogs, like humans, need water to stay hydrated and healthy, excessive drinking can sometimes indicate an underlying issue. In this blog post, we’ll explore why your dog might be drinking so much water, how to determine if it’s excessive, and what steps you can take to ensure your furry friend stays happy and hydrated.

Normal water consumption for dogs

There isn’t a one-size-fits-all answer to how much water dogs should drink, as it varies depending on factors such as size, age, activity level, and environmental conditions. However, as a general rule of thumb, dogs typically need about an ounce of water per pound of body weight per day. This means that a 20-pound dog would need approximately 20 ounces of water daily. Keep in mind this is just a guideline, and individual dogs may require more or less water.

Related blog: can dogs drink something other than water?

Spotting excessive drinking or thirst

So how can you tell if your dog is drinking too much water? Pay attention to any changes in your dog’s drinking habits. If you notice a sudden increase in water consumption or if your dog is drinking significantly more than usual, it may be a cause for concern. Excessive drinking, also known as polydipsia, can be a sign of underlying health issues such as diabetes, kidney disease, or Cushing’s disease.

Beagle drinking water from a yellow plastic bowl

Reasons your dog may be drinking more

  1. Exercise. Dogs may drink more water after vigorous exercise to replenish fluids lost through sweating and panting.
  2. Warm Weather. Dogs are more likely to drink water to stay hydrated in hot weather.
  3. Boredom. Some dogs may drink more out of boredom, especially if they don’t have enough mental or physical stimulation.
  4. Underlying Health Issues. Certain medical conditions, such as diabetes or kidney disease, can cause excessive thirst and drinking.
  5. Diet Changes. Some dogs may drink more water when switching to a new type of food, including kibble, due to differences in taste or ingredients.

Read more on keeping your dog cool when the weather’s warm.

What to do if you think your dog is drinking too much

If you suspect your dog is drinking excessively, it’s essential to consult your veterinarian for a thorough evaluation. Your vet can perform tests to determine the underlying cause of your dog’s increased thirst and recommend appropriate treatment options.

What not to do

One common mistake pet owners make is restricting their dog’s access to water in an attempt to reduce drinking. However, this can be dangerous and potentially lead to dehydration or exacerbate underlying health issues. Always ensure your dog has access to fresh, clean water at all times.


While some fluctuations in water consumption are normal for dogs, excessive drinking can be a cause for concern. By understanding the reasons behind your dog’s increased thirst and taking appropriate action, you can help ensure your furry friend stays healthy and hydrated. If you have any concerns about your dog’s drinking habits, don’t hesitate to reach out to your vet for guidance and support.

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