Foreign Body Ingestion: An Emergency Not to Ignore
Also known as: Swallowed Object, Swallowed Foreign Object, Button Battery Ingestion
Overview
Foreign body ingestion refers to the accidental or intentional swallowing of a non-food object that can become lodged in the digestive tract. It is common, especially in children ages 6 months to 3 years, who account for most cases. In 2022, more than 50,000 cases of foreign body ingestion in children younger than 5 were reported to the National Poison Data System. In adults, it often happens during meals (fish bones, small bones, pits) or in older adults who wear dentures. Most swallowed objects (80-90%) pass on their own, but some require prompt medical intervention.
Causes and Risk Factors
Causes vary by age and context. In children, mouthing objects during exploration is the main reason for ingesting items (coins, button batteries, small toys). In adults, eating too quickly or pre-existing dysphagia contribute to food getting stuck. Risk factors include:
- Neurological or psychiatric conditions (intentional ingestion)
- Esophageal narrowing or a history of digestive surgery
- Alcohol or sedative use that reduces alertness
- Dentures, which can reduce sensation of what’s in the mouth
- Extremes of age (infants, older adults)
Symptoms
Clinical signs depend on the location and nature of the object. The most common symptoms are:
- Dysphagia (difficulty swallowing) and pain with swallowing
- Excess saliva, regurgitation, or vomiting
- A persistent feeling of something stuck in the throat or chest
- Chest or neck pain
- Persistent cough, especially if the object is near the airway
- Stridor or breathing difficulty if there’s partial airway obstruction
- Vomiting blood if there’s a mucosal injury
Diagnosis
The doctor first takes a detailed history (type of object, time of ingestion, symptoms) and does a physical exam. A chest and abdominal X-ray is done to locate radiopaque objects. If there’s uncertainty, or for objects that don’t show up on X-ray (bones, plastic), a CT scan of the chest or abdomen or an upper endoscopy is used. This endoscopic exam can both confirm the diagnosis and treat it at the same time.
Treatments
Treatment depends on the object’s location, nature, and the symptoms present:
- Watchful waiting: for small, non-dangerous objects that have passed the stomach, home monitoring and stool inspection for 10 to 14 days is appropriate in most cases
- Endoscopic removal: needed urgently for objects stuck in the esophagus, sharp objects, button batteries (risk of severe chemical burns within 2 hours), or multiple magnets
- Surgery: reserved for cases where endoscopy fails, or for perforation, peritonitis, or complete bowel obstruction
- Heimlich maneuver: performed immediately if the object is blocking the airway and causing acute breathing distress
- Treating any complications: antibiotics for infection, management of a perforation
For a swallowed button battery, call the National Battery Ingestion Hotline at 1-800-498-8666 right away for guidance, in addition to seeking emergency care.
Prevention
Prevention relies on simple daily habits, especially with children:
- Keep small objects (coins, batteries, buttons) out of reach of children under 3
- Cut food into small pieces for young children and older adults
- Eat slowly, chew thoroughly, and avoid talking with food in your mouth
- Avoid drinking alcohol while eating
- Regularly check that dentures fit properly
- Educate childcare providers about the risks of accidental ingestion
When Should You See a Doctor?
Seek emergency care if you notice breathing distress, complete inability to swallow, intense chest pain, blood in vomit, or if a button battery or magnet was swallowed. In children, any suspected ingestion should be evaluated by a doctor right away. Call 911 for choking or severe breathing difficulty.
Sources
- American Academy of Pediatrics (HealthyChildren.org), National Battery Ingestion Hotline number, the two-hour burn window, and pediatric battery and ingestion safety
- StatPearls: Pediatric Foreign Body Ingestion (NCBI Bookshelf, NIH), age group most affected and U.S. case counts reported to the National Poison Data System
- StatPearls: Esophageal Foreign Body Ingestion (NCBI Bookshelf, NIH), share of ingested objects that pass spontaneously
- StatPearls: Gastrointestinal Foreign Body (NCBI Bookshelf, NIH), home monitoring and stool inspection window for small objects
- MedlinePlus, symptoms, diagnosis, and emergency care for a swallowed object, plus the National Battery Ingestion Hotline number