Cats
Larger litter clumps, weight loss and increased appetite may suggest diabetes, thyroid disease or kidney disease and warrant testing.
SYMPTOM → WHAT DO I DO?
Increased drinking or urination
Measure the change without restricting water, and consider endocrine and kidney disease.
CALL YOUR VETERINARIAN PROMPTLY
READ THIS FIRST
Observations can help your veterinarian. They cannot rule out an emergency.
Contact an emergency veterinary facility immediately for difficult breathing, collapse, ongoing seizures, inability to urinate, major bleeding, abnormal gum color, sudden severe abdominal swelling or rapidly worsening weakness.
What could be behind this symptom?
These are possibilities, not a diagnosis. The right explanation depends on the examination, species and medical history.
- Diabetes mellitus, kidney disease or urinary infection
- Hormonal disease, liver disease or medication effects
- Dietary salt, heat, dehydration or reproductive disease
- Behavioral change or increased access to water
What can you safely check at home?
Write down what you see and bring photographs or video only when doing so does not delay care.
- How often the water bowl needs refilling and whether urine volume truly increased
- Accidents, larger litter clumps, overnight urination or straining
- Appetite, weight, vomiting, energy and medication history
- Whether the animal is intact, recently received steroids or is pregnant
Avoid actions that can make things worse.
- Do not restrict water to prevent accidents.
- Do not stop prescription medication abruptly.
- Do not assume aging alone explains a substantial change.
- Do not confuse frequent tiny urinations with increased urine production.
When should you contact your veterinarian?
- Schedule a prompt examination for persistent increased thirst or urination.
- Bring recent medication names and discuss urine testing and bloodwork.
- Call sooner if appetite, weight or energy are also changing.
Get emergency help immediately if you see:
- Vomiting, weakness, collapse, dehydration or inability to keep water down
- Straining with little or no urine
- An intact female with increased thirst plus discharge, fever-like behavior or marked lethargy
The same symptom can mean different things in different animals.
Domestic equines
A change in water consumption alongside laminitis, weight change or abnormal hair coat warrants endocrine evaluation.
Reptiles & amphibians
Assess actual water use together with humidity, soaking behavior and enclosure temperature.
TRUSTED SOURCES
Sources behind this guidance
American Veterinary Medical AssociationFirst aid tips for pet owners and limits of home care ↗Merck Veterinary ManualVeterinary professional and pet-owner disease references ↗Merck Veterinary Manual: urinary obstructionWhy urinary blockage in cats requires immediate veterinary attention ↗
These educational resources support a conversation with your veterinary team. They do not replace examination, diagnosis or species-specific emergency care.