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Updated: Aug 14, 2026

Handheld Metal Detector Screening for Metallic Foreign Body Ingestion in Children
Published on: September 11, 2018
Ingestion of multiple magnets: hazardous foreign bodies for children
Keiichi Uchida1, Kohei Otake, Takashi Iwata
1Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie 514-8507, Japan. ucchie@clin.medic.mie-u.ac.jp
Abstract:
We report a case of perforation, fistula formation, and small bowel obstruction in a 2-year-old child who had ingested 32 small magnets. Multiple magnets will attract one another through the bowel wall and lead to pressure necrosis with complications. We recommend early surgical intervention before the onset of gastrointestinal complications if ingested multiple magnets have not moved on the follow-up radiograph. Both clinicians and the lay population need to be aware that multiple magnets can be hazardous foreign bodies for children.
Insights
Ingesting multiple small magnets can cause serious intestinal issues like perforation and obstruction in children. Early surgical intervention is recommended if magnets don't pass, preventing severe complications.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Foreign Body Ingestion
Background:
- Pediatric foreign body ingestion is a common clinical problem.
- Ingestion of multiple magnetic objects presents unique risks due to magnetic attraction.
- Delayed diagnosis and management can lead to severe gastrointestinal complications.
Observation:
- A 2-year-old child ingested 32 small magnets.
- The patient presented with symptoms of bowel obstruction, perforation, and fistula formation.
- Radiographs revealed the presence of multiple magnets within the gastrointestinal tract.
Findings:
- Internal magnetic attraction through the bowel wall caused pressure necrosis.
- This led to transmural injury, resulting in perforation and fistula formation.
- Small bowel obstruction occurred due to the magnets and associated inflammation.
Implications:
- Early surgical intervention is crucial for cases of multiple magnet ingestion.
- Prompt removal of magnets can prevent life-threatening gastrointestinal complications.
- Increased awareness among healthcare providers and the public regarding the hazards of pediatric magnet ingestion is essential.
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