Why Is My Cat Eating Paper?

In this guide

From cardboard boxes to the corner of a book, some cats develop a genuine appetite for paper. Here is what is behind it, and when to worry.

Chewing or actually swallowing paper, cardboard, or similar non-food items is a behaviour vets call pica. Occasional chewing on a cardboard box or a paper bag is common and mostly harmless curiosity. Regularly eating and swallowing paper is different, and worth taking seriously.

Possible reasons

• Texture attraction: some cats are simply drawn to the crinkly texture and sound of paper, similar to the appeal of a cardboard box
• Boredom or insufficient stimulation, particularly in indoor cats without enough to occupy their attention
• Underlying nutritional gaps, though the link between diet and pica is genuinely mixed in current veterinary research and not a settled cause on its own
• Stress or anxiety, with chewing acting as a self-soothing behaviour
• Early weaning or being separated from littermates too young, which is sometimes seen in hand raised kittens rescued very young in India
• Certain breeds, particularly Oriental breeds such as Siamese and Birman, are genuinely over-represented in pica cases in veterinary research, suggesting a real genetic component rather than just anecdote

Why it matters beyond the mess

Swallowed paper, especially in any quantity, can cause an intestinal blockage, which is a genuine medical emergency requiring surgery in severe cases. Signs of a possible blockage include vomiting, loss of appetite, lethargy, and straining without producing stool, and any of these after known paper eating deserves an urgent vet visit rather than a wait and see approach.

What the breed research actually found

A well cited case-control study of over 200 Siamese and Birman cats found that the specific risk factors differed by breed rather than pointing to one single cause. In Birman cats, being weaned earlier than seven weeks and coming from a small litter both raised the risk, which fits the general pattern seen in early-weaned or hand-raised street kittens. In Siamese cats, early weaning made no measurable difference, but a history of other medical problems was linked to a higher rate of the behaviour, reinforcing why a proper vet workup matters even in a breed with a known genetic tendency.

Managing the behaviour

• Keep paper, cardboard, and similar items out of reach when they cannot be supervised
• Offer safe alternatives to chew, such as cat grass or specifically designed chew toys
• Increase daily play and enrichment to address possible boredom as a contributing factor
• Book a vet visit for any cat that eats paper regularly, both to rule out a medical cause and to catch a developing habit early, before it becomes a genuine health risk

Article content © S Vejay Anand. All rights reserved.