Swallowed Magnets: A Medical Emergency—Risks, Complications, and Immediate Actions

Why Multiple Magnets Are Especially Dangerous

When two or more magnets (or a magnet and a metal object) are swallowed separately, they can attract each other across bowel walls, causing:

• Pressure necrosis: Ischemic perforation of intestinal wall.
• Fistula formation: Abnormal connections between bowel loops or to other organs.
• Obstruction: Blockage of luminal contents.
• Volvulus: Twisting of bowel around the magnetic axis.

Other Serious Risks

• Tissue erosion and ulceration from direct contact.
• Interference with medical devices: Pacemakers, ICDs, insulin pumps, neurostimulators.
• Coin battery confusion: Small magnets may be mistaken for button batteries, which cause caustic injury.

Clinical Presentation

Abdominal pain, vomiting, drooling, refusal to eat, fever, signs of peritonitis or sepsis. Symptoms may be delayed or nonspecific.

Immediate Management

1. Do NOT induce vomiting.
2. Seek emergency care immediately. Time is critical to prevent perforation.
3. X-ray (multiple views) to locate and count magnets.
4. Endoscopic retrieval if in stomach/esophagus.
5. Surgical intervention if in small bowel/colon, signs of perforation, or failed endoscopy.

Prevention

• Keep high-powered magnet sets away from children <14 years.
• Educate caregivers about the unique danger of multiple magnets.
• Follow CPSC safety standards and recalls.