Dogs explore the world with their mouths, and many swallow items that were never meant to be eaten. Socks, underwear, corn cobs, bones, toys, rubber balls, hair ties, and rocks are among the most commonly retrieved foreign bodies at veterinary hospitals. Some objects pass through without incident; others lodge in the esophagus, stomach, or intestines, creating obstructions that require emergency surgery.

When a foreign body becomes dangerous

An object that is too large to pass through the pylorus or intestinal tract creates a blockage. Partial obstructions may cause intermittent symptoms; complete obstructions stop the movement of food and fluid entirely. Linear foreign bodies like string, ribbon, or fabric are particularly dangerous because they can saw through intestinal walls as peristalsis tries to move them along, causing perforation and peritonitis.

Symptoms to watch for

Repeated vomiting, especially after eating or drinking, is the most common sign. Dogs may also show loss of appetite, abdominal pain when picked up or touched, lethargy, straining to defecate without results, and progressive dehydration. With linear foreign bodies, you may see string protruding from the mouth or anus. Never pull it, as this can worsen intestinal damage.

Diagnosis

Radiographs (X-rays) can reveal radiopaque objects like metal or bone. Many soft-tissue foreign bodies do not show on X-rays, so veterinarians may use contrast studies, ultrasound, or endoscopy to locate the obstruction. Blood work helps assess dehydration and systemic inflammation.

Treatment options

Some recently swallowed objects can be retrieved endoscopically without surgery. If the object has moved into the intestines or caused a perforation, surgical removal (enterotomy or intestinal resection) is necessary. Post-operative care includes IV fluids, pain management, antibiotics if perforation occurred, and a gradual return to food.

Prevention

Supervise play with toys and discard damaged items before pieces break off. Secure laundry baskets, trash cans, and kitchen waste. Teach a reliable “drop it” and “leave it” command. Crate-train dogs that are prone to scavenging when unsupervised. Puppy-proof your home with the same diligence you would for a toddler.

Veterinary disclaimer: This article is for general education only and does not replace an examination by a licensed veterinarian. If you suspect your dog swallowed a foreign object, contact your vet promptly.