TL;DR: Ingesting string or ribbon is a life-threatening emergency for cats because it can cause the intestines to bunch and tear. Immediate veterinary care is required to prevent severe internal damage and to explore non-surgical removal options.
What is a linear foreign body and why is it dangerous for my cat?
When a cat swallows string, yarn, ribbon, or dental floss, it is referred to as a linear foreign body. Unlike a solid object like a ball, string is particularly dangerous because one end can become anchored (often under the tongue or at the stomach exit) while the rest moves through the digestive tract. This causes the intestines to bunch up like fabric on a drawstring, a condition called plication, which can lead to severe internal lacerations or organ failure.
Is my cat eating string a high-urgency veterinary emergency?
- Yes, ingestion of string is a high-urgency emergency; do not wait for symptoms like vomiting or lethargy to appear.
- Internal damage may already be occurring even if your cat is not yet showing signs of distress.
- Immediate veterinary intervention is necessary to determine if the string can be safely removed via induced vomiting or endoscopy.
- Early intervention can prevent the object from moving into the intestines and requiring complex abdominal surgery.
How does taking a photo of the ingested material help my veterinarian?
- If you have access to a piece of the same string or can photograph what is left of the item, please do so.
- A photo helps the veterinary team assess the length, thickness, and texture of the material.
- Knowing if the string is abrasive, stretchy, or likely to absorb fluids allows the vet to predict how it will behave inside your cat's body.
- This information helps the medical team choose the safest and most effective removal method.
Clinical Context (Merck Veterinary Manual)
In cats, ingestion of linear foreign bodies such as string, yarn, or dental floss is common and can lead to gastrointestinal obstruction. Physical examination should include thorough inspection of the oral cavity, as the linear foreign body may be anchored to the base of the tongue; if present, it must be cut immediately and never pulled. Linear foreign bodies are more likely to cause gastrointestinal mucosal damage and devitalization, affecting a large section of the gastrointestinal tract, potentially requiring resection and anastomosis. Clinical signs often include vomiting and anorexia, though vomiting is less common with distal, small-intestinal obstruction.
Chapter: Gastroenterology, Surgery
Source: The Merck Veterinary Manual, 11th Edition (Page 391)