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Why is My Cat Drinking More Than Usual?
Cats can be remarkably subtle about their daily habits. Many owners rarely see their cat at the water bowl, which is why it stands out when a pet starts hovering around the kitchen tap or draining their water dish daily. If you find yourself asking, why is my cat drinking more than usual, you are definitely not alone.
A sudden change in thirst is a frequent reason pet owners in Eden Park and the surrounding Kent area bring their cats in to see our team. While it might simply be down to a warm afternoon, increased water consumption is often an early clue that something needs veterinary attention.
How Much Should a Cat Normally Drink?
As a general guide, a healthy cat needs roughly 40 to 60 millilitres of water per kilogram of body weight each day. Cats fed primarily on wet food get a large portion of their daily moisture straight from their meals and may barely touch their bowl. Cats eating dry biscuits naturally need to drink more. When a cat starts visiting the bowl far more often or seeking out unusual water spots like flowerpots and sinks, their routine has changed.
10 Reasons Why Your Cat Is Drinking So Much
If you are wondering “why is my cat drinking so much”, several factors could be responsible, ranging from diet tweaks to deeper health problems. These are some of the most common ones:
1. Hot Weather or Increased Activity
A spell of warm weather or a burst of running around will naturally make your cat thirstier. Cats drink extra water to stay hydrated when temperatures rise.
2. A Change in Diet
Moving from wet pouches to dry kibble causes a noticeable increase in drinking. Wet food contains significant moisture, so cats on dry diets must drink to compensate.
3. Kidney Disease
Kidney disease is common in older cats. As the kidneys struggle to filter waste and concentrate urine, cats lose fluids rapidly and drink heavily to prevent dehydration.
4. Diabetes
Diabetes causes excess sugar to accumulate in the bloodstream and spill into the urine, drawing water out with it and creating persistent thirst alongside larger urine clumps in the litter tray.
5. Hyperthyroidism
An overactive thyroid gland increases your cat’s metabolic rate. You might notice your cat losing weight despite eating well, alongside increased water intake.
6. Urinary Tract or Kidney Problems
Bacterial infections and bladder inflammation can cause discomfort. Affected cats often drink more fluids as their bodies attempt to flush out irritation.
7. Certain Medications
Steroids and diuretics are known to cause increased thirst and urination. Always let your vet know if your cat’s drinking pattern shifts after starting a new medication.
8. Dehydration From Vomiting or Diarrhoea
Tummy upsets cause quick fluid loss. Cats attempt to replace lost moisture by drinking more, though persistent sickness makes it difficult for them to stay hydrated.
9. Liver Disease
The liver manages crucial metabolic tasks. When liver function is impaired, waste products build up in the bloodstream, often triggering increased thirst.
10. Other Underlying Health Conditions
Other medical issues, such as high calcium levels or hormonal imbalances, can affect water regulation. Diagnostics help rule out these less frequent causes.
Cat Drinking Too Much: Final Thoughts
Spotting an increase in your cat’s water intake early makes a huge difference. Because increased thirst can point to anything from warm weather to serious metabolic illness, getting a professional opinion gives you peace of mind.
At Eden Park Veterinary Surgery, we regularly see cats from Beckenham, Eden Park, and across the local Kent area for health checks. Our practice has an on-site laboratory for blood and urine testing, allowing us to evaluate your cat promptly.
If you are concerned about your cat’s drinking habits, please contact our veterinary surgery to book an appointment with our veterinary team.
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