Signs Your Cat Is in Pain

Signs Your Cat Is in Pain: How to Recognize Feline Discomfort

Cats are stoic creatures. Unlike dogs, who may whimper or seek comfort when hurting, cats tend to suffer in silence. Recognizing the signs of pain in cats requires careful observation — because by the time a cat shows obvious distress, they may have been in pain for quite some time.

This guide covers the behavioral, physical, and postural signs that your cat may be experiencing pain, and what you should do about it.

Why Cats Hide Pain

Pain concealment is a deeply ingrained survival instinct. In the wild, a visibly injured or sick animal becomes a target for predators. Even domesticated cats retain this instinct, making pain detection a challenge for even the most attentive owners.

Understanding this helps explain why you need to look for subtle changes rather than dramatic ones.

Behavioral Signs of Pain in Cats

1. Hiding or Withdrawal

A cat in pain often retreats to quiet, dark places — under the bed, in a closet, or behind furniture. If your normally social cat suddenly becomes reclusive, pain may be the reason.

2. Changes in Grooming

Pain can cause cats to either over-groom (licking a painful area obsessively) or under-groom (neglecting their coat because movement hurts). A dull, matted coat in a previously well-groomed cat is a red flag.

3. Aggression or Irritability

A cat that suddenly hisses, bites, or scratches when touched — especially in a specific area — is likely reacting to pain. Even the gentlest cat may lash out when hurting.

4. Reduced Activity or Reluctance to Move

Cats in pain often move less, jump less, or avoid stairs and furniture they previously enjoyed. This is especially common with joint pain or injuries.

5. Changes in Appetite

Pain frequently suppresses appetite. A cat that stops eating or shows reduced interest in food may be experiencing oral pain, abdominal discomfort, or general malaise from an underlying condition.

6. Excessive Vocalization

While some cats are naturally vocal, sudden increases in meowing, yowling, or growling — especially at night — can indicate pain. Conversely, an unusually quiet cat may also be suffering.

7. Changes in Litter Box Behavior

Straining, crying in the litter box, or eliminating outside the box can all signal pain — particularly urinary or gastrointestinal pain.

Physical Signs of Pain in Cats

1. Hunched Posture

A cat sitting hunched with their back arched, head lowered, and paws tucked tightly under their body is often trying to protect a painful area. This "loaf" position taken to an extreme is a warning sign.

2. Squinting or Partially Closed Eyes

The "pain face" in cats includes squinting or partially closed eyes, flattened ears, and whiskers pulled back. Researchers have developed the Feline Grimace Scale to help owners and vets identify pain through facial expressions.

3. Flattened Ears

Ears pinned back or flattened to the sides of the head indicate discomfort, fear, or pain — especially when combined with other signs.

4. Rapid or Shallow Breathing

Pain can cause changes in breathing rate and pattern. If your cat is breathing faster than normal or taking shallow breaths, this warrants immediate attention. You can monitor breathing rate at home — normal is 20–30 breaths per minute at rest.

5. Muscle Tension or Trembling

Tense muscles, trembling, or flinching when touched in a specific area are direct indicators of localized pain.

How to Check Your Cat for Pain at Home

A gentle, systematic at-home assessment can help you identify where your cat may be hurting:

• Temperature check: Fever often accompanies pain from infection or inflammation. Use the iProven Pet Thermometer DTK-117Y for a quick, accurate reading at home.
• Gum assessment: Pale or white gums can indicate shock or severe pain. A medical penlight helps you get a clear view.
• Gentle palpation: Slowly and gently run your hands over your cat's body, watching for flinching, tensing, or vocalization that indicates a painful spot.
• Observe movement: Watch your cat walk, jump, and use the litter box for any signs of stiffness, limping, or hesitation.

The Feline Grimace Scale

Developed by veterinary researchers, the Feline Grimace Scale (FGS) is a validated tool for assessing acute pain in cats based on five facial action units:

• Orbital tightening (squinting)
• Ear position (flattened or rotated)
• Muzzle tension
• Whisker change (bunched or forward)
• Head position (lowered below shoulders)

Each is scored 0 (not present), 1 (moderately present), or 2 (obviously present). A total score of 4 or above suggests the cat is in pain and needs veterinary attention.

When to See a Vet

Always consult a veterinarian if you suspect your cat is in pain. Never give human pain medications — drugs like ibuprofen, acetaminophen, and aspirin are toxic to cats. Only use medications prescribed by your vet.

Seek emergency care immediately if your cat shows:

• Inability to walk or stand
• Crying or screaming continuously
• Difficulty breathing
• Pale, blue, or white gums
• Suspected trauma

Final Thoughts

Pain in cats is easy to miss but important to catch. By learning your cat's normal behavior and doing regular gentle assessments, you can spot the subtle signs that something is wrong. When in doubt, always err on the side of caution and consult your veterinarian.