quirky

Chewing and Nibbling on Cardboard

Play, Texture & Instinct

What it means: Play, Texture & Instinct

Your cat gnaws at the corners of boxes, nibbles the edge of a cereal packet, or settles in to methodically chew a piece of cardboard.

The Behaviour Behind It

Cats are drawn to cardboard for many reasons — its cosy, den-like shape, its scratchable texture — and for some, its very satisfying chew. The slightly yielding, fibrous resistance of cardboard appeals to the same instincts that, in the wild, would have a cat gnawing on the bones, fur and tough tissue of prey. The action can also be soothing, a bit of self-directed enrichment that relieves boredom or mild stress.

In kittens and younger cats, cardboard-chewing often overlaps with teething and the general urge to explore the world with their mouths. In others it is simply a favourite pastime.

What It Means for You

Occasional, casual cardboard-chewing is usually harmless and tells you:

  • Your cat is entertaining itself and enjoying the texture
  • They may be a little under-stimulated and looking for something to do
  • A younger cat may be teething or exploring

Provide plenty of legitimate outlets — scratch pads, chew-safe cat toys, silvervine or catnip chews, and daily interactive play — so the urge has somewhere healthy to go. Keep printed, glued or plastic-coated packaging out of reach and offer only plain cardboard.

When to Be Concerned

Take note if your cat is actually swallowing pieces of cardboard rather than just shredding it, as ingested material can cause a digestive blockage. Persistent chewing or eating of non-food items — cardboard, wool, plastic, fabric — is known as pica, and can sometimes be linked to dietary deficiencies, boredom, stress or an underlying medical issue. If chewing is intense, compulsive, or accompanied by vomiting, appetite changes or weight loss, speak to your vet.

🐾 Most common in

Seen across many cats, particularly playful younger ones and teething kittens; compulsive chewing of non-food items (pica) appears more often in some Oriental breeds such as the Siamese.

When to worry: Light shredding is usually harmless. Seek veterinary advice if your cat is swallowing cardboard, chewing compulsively, or targeting non-food items generally (pica), especially alongside vomiting or appetite and weight changes.