Why Is My Old Cat Drinking So Much Water

Why Is My Old Cat Drinking So Much Water?

If you’ve noticed that your old cat is drinking more water than usual, it may be a cause for concern. Excessive thirst, also known as polydipsia, can be a symptom of an underlying health issue. While it’s normal for cats to drink water, a sudden increase in their water intake could indicate an underlying problem. Here are a few reasons why your old cat may be drinking so much water:

1. Dehydration: As cats age, they become more prone to dehydration. This can be caused by factors such as kidney disease, diabetes, or hyperthyroidism. Increased water consumption could be your cat’s way of compensating for fluid loss.

2. Kidney Disease: Chronic kidney disease is common in older cats and can result in increased thirst. The kidneys may not be functioning properly, leading to the body’s need for more water to flush out waste products.

3. Diabetes: Just like humans, cats can develop diabetes. One of the main symptoms is increased thirst. If your cat is drinking more water and also urinating more frequently, it’s important to consult with a veterinarian for proper diagnosis and treatment.

4. Hyperthyroidism: An overactive thyroid gland can lead to increased thirst in cats. Other symptoms may include weight loss, increased appetite, and restlessness. A vet can conduct blood tests to determine if hyperthyroidism is the cause.

5. Urinary Tract Infection: Older cats are more prone to urinary tract infections, which can cause increased thirst. If your cat is also exhibiting symptoms such as frequent urination or straining in the litter box, it’s essential to seek veterinary care.

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6. Medications: Certain medications can increase a cat’s thirst. If your cat has recently started a new medication, it’s worth checking if increased water consumption is a potential side effect.

7. Environmental Factors: Changes in weather, temperature, or humidity can affect a cat’s hydration needs. If the weather has become hotter or drier, your cat may be drinking more water to stay properly hydrated.


1. How much water should my old cat be drinking each day?
On average, cats should drink around 2.5 to 4.5 ounces of water per 5 pounds of body weight per day. However, individual needs may vary.

2. How can I encourage my cat to drink more water?
Ensure fresh water is always available and consider using a water fountain or adding wet food to their diet to increase water intake.

3. Should I be concerned if my cat drinks more water during hot weather?
Increased water intake during hot weather is normal. However, monitor for any additional symptoms or changes in behavior.

4. When should I contact a veterinarian about my cat’s increased water consumption?
If your cat’s water intake suddenly increases or if they display other concerning symptoms, it’s best to consult with a vet.

5. Can stress or anxiety cause increased thirst in cats?
Yes, stress or anxiety can contribute to increased thirst. If you suspect this may be the case, try to identify and address the underlying cause.

6. Is it normal for my old cat to drink less water as they age?
No, decreased water consumption in older cats can be a sign of health problems and should be evaluated by a veterinarian.

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7. Are there any home remedies to reduce my cat’s excessive thirst?
It’s important to address the underlying cause of increased thirst rather than relying on home remedies. Consult with a vet for proper diagnosis and treatment options.

In conclusion, if you notice your old cat drinking more water than usual, it’s essential to pay attention and seek veterinary advice. Increased thirst can be a symptom of various health issues, and early detection and treatment are crucial for your cat’s well-being.