Glue toxicity in dogs is a serious and potentially life-threatening condition that occurs when dogs ingest adhesive products, with expanding polyurethane glues such as Gorilla Glue representing the most dangerous category. Unlike many toxic ingestions that cause poisoning through chemical absorption, polyurethane glue toxicity is primarily a mechanical problem. When these glues contact moisture in the stomach, they expand dramatically and harden into a solid mass that conforms to the shape of the stomach, creating a foreign body obstruction that cannot pass naturally through the digestive system. This unique mechanism makes expanding glue ingestion a veterinary emergency requiring prompt intervention.
The mechanism of injury in polyurethane glue toxicity involves a chemical reaction between the glue's diisocyanate components and water. When the glue enters the moist environment of the stomach, it begins foaming and expanding, often increasing to several times its original volume within minutes to hours. As the material expands, it takes on the shape of the stomach's interior, creating a large, solid mass that veterinarians sometimes describe as having a stomach-shaped cast. This expansion can cause significant gastric distension and pain, and the hardened mass cannot be digested or broken down by normal stomach processes.
Various types of glue pose different levels of risk to dogs. Expanding polyurethane adhesives including Gorilla Glue and similar wood glues are the most dangerous due to their dramatic expansion properties. Traditional wood glues, super glues or cyanoacrylates, white school glue, and craft adhesives generally pose less severe risks, though they can still cause gastrointestinal irritation or obstruction in sufficient quantities. Super glues can bond tissues together if they contact the mouth or skin, causing additional complications. Understanding which type of glue a dog has ingested is crucial for determining the appropriate treatment approach.
Veterinary intervention is essential for any dog suspected of ingesting expanding glue, as the consequences of delayed treatment can be severe. The expanded glue mass typically cannot pass through the pylorus into the intestines and will not dissolve or break down over time. Without surgical removal, dogs can experience ongoing obstruction, perforation of the stomach wall, peritonitis, and death. Even when surgery is performed, some dogs experience complications. The prognosis is generally good when treatment is obtained quickly before significant expansion has occurred, making immediate veterinary consultation critical whenever glue ingestion is suspected.
