Why the object itself matters
Sharp objects can perforate the gastrointestinal tract. Long string-like material can create a linear foreign body. Batteries, magnets, and some chemical-containing items carry additional risks. Even soft fabric or rubber can obstruct the intestine.
What will the veterinarian ask?
Be ready to describe what was swallowed, approximately how much, when it happened, your dog’s weight, and whether symptoms have started. Bring an identical toy, packaging, or a photo if available.
How is a foreign body diagnosed?
Physical examination, abdominal radiographs, ultrasound, or endoscopy may be recommended. Some objects are not visible on plain X-rays, so imaging decisions depend on the history and clinical findings.
Can I wait for it to pass?
That decision should be individualized. Monitoring may be reasonable for certain small, smooth objects in an asymptomatic dog, but waiting can be dangerous when obstruction or perforation is possible. Never pull string from the mouth or anus if it appears anchored internally.