Signs of Stress in Cats
Signs of stress in cats may include:
- Trembling
- Withdrawal
- Hiding
- Changes in activity level (more or less active)
- Attempts to escape
- Excessive scratching or chewing
- Aggressive behavior or body language (hissing, dilated pupils, flattened ears, raised fur, tucked tail)
- Diarrhea
- Failure to use the litter box
- Changes in appetite
- Overgrooming (may result in sores or missing patches of fur)

Causes of Stress in Cats
Stress and feline health are linked. Signs of stress in cats can result from a wide range of physical and behavioral causes.
Pain
Cat stress often arises from pain, such as from an injury or chronic condition. For example, senior cats who develop arthritis can experience discomfort throughout their whole body. This can impair mobility, making it difficult to squat or self-groom, which may result in accidents outside the litter box or an unkempt appearance. If your cat is in pain, they may also hide or shy away from your touch.
Illness
Anything from fever to constipation to decreased kidney function can leave your cat feeling out of sorts and increase their stress levels. If you have more than one cat in your home, illness can impact how cats relate to one another. One sick cat can increase stress in other cats in the home.
Poor Socialization
Kittens who aren't properly socialized can act fearful when faced with something new — whether that's another pet, human family member or experience. If you didn't adopt your cat as a kitten, they may have negative associations with certain experiences from kittenhood (e.g., kids handling them, exposure to dogs) that trigger stress behaviors.
Cognitive Changes
Some cats experience cognitive changes, such as memory problems, in their senior years. Chemical changes in the brain can prompt obsessive behaviors, such as exaggerated or repetitive yowling; excessive grooming; eating, chewing or sucking on inedible items, such as fabric; or self-injury, such as attacking their tail. Certain breeds, including Siamese, Burmese and Abyssinian cats, may be at higher risk of these behaviors.
Decreased Sensory Abilities
As your cat ages, their hearing, sight and smell decline. This can affect how they interact with the world. If your cat doesn't see or hear well, they may be more easily startled, which can lead to stress.
Environmental Challenges
Changes to a cat's usual environment — such as rearranged furniture or a new family member in the home — can cause stress in cats. Older cats may be more sensitive to household changes since their ability to adapt to new situations declines over time. Insufficient resources, including litter boxes and scratching objects, an unclean litter box and lack of environmental enrichment can also cause stress.
Fear of Separation
Some cats become stressed when they're left home alone. This is especially prevalent among cats who have been rehomed or have a history of abandonment.
