Why Cats Scratch Everything (And How to Redirect It)

Why Cats Scratch

Scratching serves multiple biological functions:

1. Claw Maintenance

Cat claws grow in layers, like an onion. Scratching removes the dead outer sheath, revealing a sharp new claw underneath. If cats do not scratch, the old sheaths build up and can curve into the paw pad.

2. Territory Marking

Cat paws contain scent glands that deposit pheromones when they scratch. The visible scratch marks combined with the invisible scent mark serve as a territorial boundary marker. This is why cats often scratch prominently placed objects like the corner of a couch.

For more on this topic, see our guide on Why Do Cats Purr? The Science Behind the Sound.

3. Stretching

Scratching allows cats to fully extend their spine, shoulders, and legs. The deep stretch maintains muscle flexibility and joint health.

For more on this topic, see our guide on Best Interactive Cat Toys That Actually Keep Cats Engaged (2026).

4. Emotional Expression

Cats often scratch when excited (when you come home, before playtime, after waking up). It is a displacement behavior that releases emotional energy.

How to Redirect Scratching

Provide the Right Surfaces

Sisal rope posts: The gold standard. The rough texture satisfies the scratching urge better than any other material.
Cardboard scratchers: Inexpensive and effective. Many cats prefer the horizontal scraping motion.
Vertical AND horizontal options: Some cats prefer to scratch vertically (tall posts), others horizontally (flat pads). Provide both.

Placement Matters

Place scratching posts next to the furniture your cat is currently scratching. Cats scratch specific locations for territorial reasons. A post in the corner of a back room will be ignored if the cat wants to mark the living room.

Make Furniture Less Appealing

Apply double-sided tape (Sticky Paws brand) to furniture surfaces. Cats dislike the sticky texture on their paws.
Cover furniture corners with aluminum foil temporarily.

Never Declaw

Declawing (onychectomy) is the amputation of the last bone of each toe. It is banned in many countries and causes chronic pain, behavioral problems (litter box avoidance, biting), and long-term joint issues.