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5 Subtle Signs Your Cat Is Hiding Illness: When to See a Vet

Published on February 5th, 2015

Updated on March 25th, 2026

Written by Jessica Desrosiers

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5 Subtle Signs Your Cat Is Hiding Illness: When to See a Vet

Cats can be pros at hiding their illnesses until they are very sick.

Whether it is a natural instinct to hide illness in the wild or merely your cat's own stubborn streak getting in the way, knowing the signs of potential illness in your cat is key.

If at any time you see the following signs or your cat just isn't acting like himself, consider scheduling a check-up with your vet without delay.

Increased Vocalization

An increase in vocalization is one of the first signs many owners notice when their cat is ill.

Cats tend to increase vocalizations when they are in pain or attempting to let owners know that something "isn't right".

Hiding Behavior

Hiding can be another commonly seen sign of illness.

Cats may hide from the commotion of daily activities in order to reduce stress or not alert others to a visible injury or pain. They may also hide if they are feeling ill, such as with pain, fever, or stomach upset.

If your cat suddenly starts hiding, he may be trying to hide illness. Take note: hiding behavior can also be linked to stress or anxiety.

Changes in Movement or Posture

Cats in pain may start to walk or act differently in an attempt to minimize the pain.

Personality Changes

A sudden change in your cat's personality can indicate that something isn't right.

Your cat may suddenly become more aggressive towards you, striking out, biting, or scratching when you attempt to do things that he loved previously.

Your cat may suddenly become clingy or more affectionate than usual due to not feeling well or in an attempt to tell you something is wrong.

Litter Box Habits

A change in bowel or urinary habits is a big indicator that something is wrong.

Cats experiencing pain from arthritis or illness may miss or stop using the litter box. Cats with digestive or internal pain may also have changes in how often they urinate or may change stool consistency.

If your cat was perfect about his bathroom habits prior, he may be telling you something with his accidents. Be sure to bring a sample of urine or stool to your vet if there are accidents occurring, as this can provide clues to what is causing your cat to feel ill.

1479Pet Parents found this article helpful

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Litter Box Habits

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5 Subtle Signs Your Cat Is Hiding Illness: When to See a Vet

Increased Vocalization

Hiding Behavior

Changes in Movement or Posture

Personality Changes

Litter Box Habits

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