A change in appetite deserves attention, but one missed meal is not always a reason to panic. Note when it began, how much your cat drinks and uses the litter box, and how their energy looks.
First, check whether they are truly eating nothing
Some cats eat at night or take only small amounts when their bowl, location, or food temperature changes. Track what they actually eat over 24 hours, along with drinking, vomiting, diarrhea, or hiding.
Common reasons for a change in appetite
A new environment, noise, a food change, or too many treats can affect appetite. Mouth pain, constipation, hairball discomfort, and other illnesses can also make a cat refuse food.
- A recent move, food change, or new pet
- Bad breath, drooling, or difficulty chewing
- Changes in energy, drinking, urination, or stool
- Vomiting, diarrhea, fever, or obvious pain
What you can try at home
Move the food to a quiet, clean spot and offer fresh water and a small amount of familiar food. Do not force-feed or give human medicine. Kittens, older cats, and cats with existing conditions should not be watched at home for too long.
When to call a veterinarian
Contact a veterinarian promptly if your cat refuses all food, becomes noticeably lethargic, or has repeated vomiting, breathing trouble, pain, or difficulty urinating.
A change in appetite is useful information. Track it first, then decide; unusual accompanying symptoms deserve professional advice.
Note: This is general pet-care information, not a diagnosis or treatment plan. Contact a qualified veterinarian for persistent or serious symptoms.