SGEM#513: Everything is Awesome – Unless You Swallow A LEGO Head

Swallowed LEGO heads typically pass through the gastrointestinal tract of healthy adults within an average of 1.71 days, with a range of one to three days. This finding stems from a prospective self-experiment involving six pediatric healthcare professionals who ingested LEGO heads to determine transit times and potential complications. While the study provides a memorable point estimate, its small sample size and reliance on self-reported retrieval limit its clinical generalizability to pediatric emergency medicine. Standard practice for asymptomatic children who ingest small, blunt, non-hazardous objects remains observation rather than mandatory stool searching. Clinicians should prioritize risk stratification for high-stakes ingestions—such as button batteries or magnets—while offering reassurance to parents that most inert, small foreign bodies pass spontaneously without intervention.