Why Won't My Cat Drink Water? The Complete Guide for Cat Owners
Cats can be mysterious creatures, and when they refuse to drink water, it can leave any pet parent worried. After all, hydration is essential for health. If your cat isn't drinking enough water, there could be several reasons behind it—and don't worry, we'll go through them all and give you practical solutions.
Understanding a Cat's Relationship with Water
Why Cats Don't Naturally Drink Much Water
Cats are descendants of desert animals. In the wild, they survive by getting moisture from prey instead of drinking from streams or lakes. So, naturally, domestic cats tend to drink less water.
How Cats Stay Hydrated in the Wild
Wild cats get up to 70% of their water from eating animals like mice and birds. That's why indoor cats on dry kibble may struggle to stay hydrated.
Is It Normal for Cats to Drink Less Water?
Yes, to an extent. If your cat is eating wet food, it's getting some hydration. But if it's only on dry food and still not drinking water, that's a red flag.
Reasons Why Your Cat Won't Drink Water
Wet food is about 70-80% water, so cats on canned diets often drink very little water.
Cats are picky. If the bowl smells weird, is too deep, or the water isn't fresh, they might avoid it.
If the water bowl is too close to food or litter boxes, cats might refuse to drink.
New home? New pet? Cats stressed by changes may skip drinking.
Kidney disease, diabetes, and hyperthyroidism can affect thirst levels. See a vet for sudden changes.
Signs Your Cat is Dehydrated
- Lethargy
- Dry gums
- Loss of appetite
- Sunken eyes
Gently pull up the skin on your cat's neck. If it doesn't snap back quickly, your cat might be dehydrated.
Health Risks of Not Drinking Enough Water
Lack of water can cause urinary tract infections or blockages.
Chronic dehydration can lead to kidney disease.
Water keeps the digestive system moving. No water = constipation risk.
Daily Water Requirement Calculator
A cat needs about 50ml of water per kg of body weight daily.
For a 4kg cat: 4 × 50 = 200ml per day
Tips to Encourage Your Cat to Drink Water
Mixing water into kibble or feeding canned food boosts hydration significantly.
Cats hate stale water. Change water at least once or twice a day.
Whiskers are sensitive! Shallow bowls prevent whisker stress.
Cats love moving water—it feels fresh and fun. Many cats prefer fountains to bowls.
Experiment with different spots. Cats often prefer water away from their food.
A little tuna water or low-sodium chicken broth can tempt them to drink.
Should You Give Cats Milk Instead of Water?
Nope! Most cats are lactose intolerant. Milk can cause diarrhea, not hydration. Stick to fresh water or specially formulated cat milk.
When to See a Vet
If your cat hasn't drunk water for 24 hours or shows dehydration signs like lethargy, dry gums, or loss of appetite, call your vet immediately.
Myths About Cats and Water Drinking
Truth: They do—especially indoor cats on dry food. Dehydration can lead to serious health issues.
Truth: Not true for most cats. Milk can cause digestive upset and doesn't provide proper hydration.
Conclusion
Cats not drinking water isn't always an emergency—but it can become one. By understanding their natural instincts and making small changes like adding wet food or trying a fountain, you can keep your cat healthy and hydrated. Always monitor for sudden changes, and when in doubt, consult your vet.
