What to Do When Your Cat Has Eaten String or Thread

In this guide

String, thread, wool, and tinsel are some of the most dangerous everyday objects a cat can swallow, precisely because they look so harmless. Cats are drawn to them instinctively, the dangling, moving quality triggers the same predatory interest as prey, but once swallowed, string behaves in a way that makes it far riskier than a solid object like a hairband or a bottle cap.

Why string is uniquely dangerous

Vets call this a linear foreign body. One end of the string often gets caught, commonly wrapped around the base of the tongue or lodged where the stomach narrows into the small intestine, while the rest travels further down the gut. As the intestines try to push the string along through their normal wave-like contractions, they cannot, because the far end is anchored. Instead, the bowel bunches up along the string's length like the fabric on a drawstring bag. Left in place, the taut string can slowly saw through the intestinal wall, causing perforation and a life-threatening abdominal infection.

The single most important rule

If you see string trailing from your cat's mouth or from underneath the tail, do not pull it. This is worth repeating because the instinct to tug it free is strong: pulling can tear the intestine internally even if the string looks like it is coming out easily. Instead, leave it exactly as it is and get to a vet immediately.

Signs your cat may have swallowed string

• Repeated vomiting, sometimes unproductive retching
• Visible string under the tongue or trailing from the mouth or anus
• Reduced appetite or complete refusal to eat
• Lethargy and hiding
• A painful, tense abdomen
• Straining in the litter box without producing normal stool

What the vet will do

Because string itself does not show up on a plain X-ray, your vet will look for indirect clues instead, especially a bunched, accordion-like pattern in the intestines, and may recommend an ultrasound, which is more sensitive for this specific problem. If a string is visible under the tongue and the rest has not caused obstruction, a vet may occasionally be able to simply cut it free at that end and let the rest pass naturally. In most confirmed cases, however, surgery is needed to remove the string and repair or, in severe cases, remove any damaged section of bowel. Cats typically spend a few days in hospital afterwards recovering on IV fluids and pain relief.

Reducing the risk at home

• Store sewing kits, wool, and craft supplies in a cat-proof drawer or cupboard, not left out on a table
• Cut blind and curtain cords out of reach, and use cord tidies where needed
• Skip tinsel and ribbon-heavy festive decorating if your cat is a known chewer
• Supervise play with string-based toys, and put them away after each session rather than leaving them accessible

Article content © Ravi Teja. All rights reserved.