What to Do When Your Cat is Behaving Oddly

Published on: January 14, 2026

Cats are creatures of habit, and their subtle behaviors can often be the first and only sign that something is wrong. As a cat owner, learning to decode these signals is one of the most important skills you can have. An odd behavior might be a quirky phase, but it can also be a cry for help.

Common Odd Behaviors and What They Might Mean

If you notice any of the following, it’s time to pay closer attention.

1. Hiding or Social Withdrawal

While some cats are naturally shy, a sudden increase in hiding is a classic sign of pain, stress, or illness. If your usually social cat is suddenly spending all their time under the bed or in a closet, they might be feeling unwell.

2. Changes in Appetite or Thirst

• Eating less or refusing food: This is a major red flag. Dental pain, nausea, or a host of other medical issues could be the cause.
• Increased hunger: Could be a sign of hyperthyroidism or diabetes.
• Increased thirst: Often linked to kidney disease or diabetes.

3. Litter Box Issues

A cat that stops using their litter box is not being spiteful; they are almost always signaling a problem. It could be a urinary tract infection (UTI), bladder stones, or arthritis that makes it painful to get into the box. Stress and anxiety are also common culprits.

4. Changes in Vocalization

If your quiet cat suddenly becomes very vocal, or your chatty cat goes silent, take note. Excessive meowing or yowling, especially at night, can be a symptom of pain, anxiety, hyperthyroidism, or even cognitive decline in older cats.

5. Lethargy or Decreased Activity

Is your playful cat no longer interested in their favorite toys? A significant drop in energy levels is a common, non-specific sign of many illnesses. Don't just assume your cat is "getting older" or "being lazy."

What Should You Do?

When you notice a change, don't panic, but do act.

1. Observe Carefully: Note the specifics. When did the behavior start? Is it constant or intermittent? Are there other symptoms? The more details you can provide, the better.
2. Check for Environmental Changes: Did you recently move, get new furniture, or introduce a new pet or family member? Stress can manifest in physical symptoms.
3. Scan for Dangers: Use an app like Toxic Kitty to check if your cat could have ingested a toxic plant, food, or household item. Sometimes the cause is something simple you overlooked.
4. Contact Your Veterinarian: This is the most crucial step. Never wait and see when it comes to a change in your cat’s health. A phone call can provide peace of mind, and an exam can catch a problem before it becomes a crisis.

Your intuition as a pet parent is powerful. If you feel something is off, you're probably right. By staying vigilant and acting quickly, you give your feline friend the best possible chance at a long, healthy, and happy life.