Why Is My Hamster Drinking So Much Water?

Hamsters are small, cute, and super active pets that require plenty of water to stay healthy and hydrated. Although water helps maintain many bodily functions, excess consumption of water can be a sign of worry. 

So, why is my hamster drinking so much water? If the hamster is drinking more water than usual, it can be an underlying health issue or concern. Typically, the problem arises due to dehydration, diet change, or other issues. 

This article will explore the common reasons for excessive water consumption in hamsters. We will also discuss the solutions and provide tips on what to do in cases like these. Stay tuned till the end!

Why Is My Hamster Drinking So Much Water?

Here is a quick table highlighting the common reasons behind the hamster drinking excess amounts of water. 

Why Is My Hamster Drinking So Much Water
DehydrationDehydrated hamsters will drink more water than usual to replenish their need for fluid. There are several reasons behind dehydration, such as excess heat, insufficient supply of water, and so on
Change in dietChanges in the diet of the hamster can cause an increase in water consumptionSwitching to a different brand of food often brings this issue due to different moisture levels than the previous diet
Health issuesVarious health issues often result in increased water consumption in hamstersThese issues include diabetes, kidney problems, tumors, etc. These conditions severely affect the health of the pet and its ability to regulate water and cause excessive thirst
Environmental factorsThe temperature and humidity levels in the environment can affect the water intake of a hamsterHigh temperatures or low humidity will result in dehydration and increased thirst

Signs That Hamster Is Drinking Excess Water

There are quite a few signs that the pet owners notice if the hamster drinks more water than usual. Let us tell you these symptoms in detail!

Signs That Hamster Is Drinking Excess Water

Frequent And Long Duration Of Drinking

  • If the hamster is drinking water more frequently and for longer periods than normal, it could be a sign of excessive water consumption. 
  • You may notice that your hamster is spending more time with their water bottle. 
  • Oftentimes, the hamster will return to the water bottle more frequently than their normal schedule throughout the day. 
  • And in a few cases, you will notice or hear the hamster drinking loudly and for an extended period.

Water Bottle Empties More Quickly

  • Another common symptom is the quick emptying of the bottle. 
  • Keep track of the usual amount of water that the hamster drinks, and keep an eye on the bottle or bowl. If the bottle is emptying out quicker than usual, it is an indication of excessive thirst.

However, if you want to judge whether to provide them water in a bowl or bottle, follow this video:

Wet Bedding

In some cases, the bedding of the hamster will constantly be wet. And this is a sign that they are drinking more water than they usually do. 

This is especially common with hamsters that use a water bowl rather than a water bottle. The water can easily spill from the bowl and soak into the bedding. 

However, the bedding can be damp due to the dripping from the water bottle. And in some cases, the bedding will turn out to be moldy if they are consuming excessive amounts of water.

Change In Behavior

As mentioned earlier, health issues in the hamster are a common reason behind excessive water drinking. This can cause significant changes in the behavior of your hamster. 

  • These changes typically include increased urination or less movement. 
  • You will notice that the hamster is using their litter box more frequently than usual. 
  • Sometimes, their urine is more dilute or has a stronger odor. 
  • And in some cases, excessive water drinking can also cause your hamster to become more tired and less active.

Steps To Take If Hamster Drinks Excess Water

As we have learnt if your hamster is drinking more water than it usually does, it is an indication of health problems or dietary changes. In this case, these are the steps that all pet owners must take if the hamster drinks excessive water. 

Steps To Take If Hamster Drinks Excess Water

Step 1: Monitor Water Intake

Keep an eye on how much water the hamster is drinking each day and compare it to their usual intake. This will help you determine whether they are consuming excessive amounts of water or not. If they do, there must be some reasons. 

Step 2: Check The Environment

  1. Identify the reasons. The surrounding environment plays a major role in the condition, movement, and overall situation of a hamster. 
  2. Ensure that your hamster has access to clean and fresh water at all times. They are not left dehydration at any cause. 
  3. Check that their water bottle or bowl is not leaking or contaminated with mold or bacteria.
  4. Make sure that the cage is in an appropriate location. 
  5. Keep the hamster away from direct sunlight and drafts. 
  6. Lastly, do not forget to maintain proper temperature during the summer and winter. 
Steps To Take If Hamster Drinks Excess Water

Step 3: Monitor The Diet

  1. Keep a close eye on what you feed the hamster and what it eats regularly. New adjustments or changes to the diet often increase thirst and water intake. 
  2. Make sure to adjust the food and feeding schedule accordingly. 

Step 4: Take Your Hamster To The Vet

If you notice any significant changes in water intake and behavior, it is important to take them to the vet for a check-up. The vet can perform a physical exam and run tests to identify any underlying health problems that may be causing excessive thirst. 

However, make sure to follow the advice of the vet and take care of the hamster properly. 

If you’re concerned about your hamster’s health and behavior, you may find our articles on what to do if your hamster is in shock and why your hamster is suddenly fat useful. Our article on what to do if your hamster is in shock offers advice on how to recognize and respond to this serious health condition. Meanwhile, our article on why your hamster is suddenly fat discusses the possible reasons behind this behavior and how to manage your hamster’s weight


Do you have any more questions about the water drinking issue in hamsters? Read these answers to get rid of your confusion! 

Q: How Much Water Should My Hamster Be Drinking Each Day?

On average, a healthy adult hamster should consume about 10% of their body weight in water each day. However, this amount can vary significantly depending on factors such as their diet, activity level, and environment.

Q: Are There Any Specific Health Conditions That Can Cause Excessive Water Drinking In Hamsters?

Yes, several health conditions can cause excessive water drinking in hamsters, including kidney disease, diabetes, etc. The vet can perform tests to identify the underlying cause and provide treatment accordingly. 

Q: Is It Safe To Restrict Water Intake If They Are Drinking Excessively?

No, it is not safe to restrict the water intake if they are drinking excessively. This can lead to dehydration and other health problems. However, understanding the reason and providing a proper solution is a must. 

Final Words

Water is one of the most crucial things that all living beings need to survive. However, excess intake of water is undoubtedly harmful to one’s health. So, why is my hamster drinking so much water? 

In hamsters, excessive water drinking is a common problem and typically points to dehydration and other problems. If you notice any one of the signs or symptoms in your hamster, make sure to take the animal to the vet. Do not forget to take the necessary actions to solve the issue.

Lisa G

Meet Lisa G, the founder and author of RodentsFact.com. With over 3 years of experience studying and observing various species of rodents. Lisa has established herself as a credible expert in the field. Her passion for these often-overlooked animals shines through in her in-depth articles and engaging writing style. Follow her blog to learn fascinating facts and gain a new appreciation for the furry creatures that share our world.

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