"Although the majority of items children swallow pass through, some can be unsafe and parents should still be vigilant", he said.
The results were published in the December issue of the Journal of Paediatrics and Child Health, with the hope of reassuring parents who worry about their kids eating these small toys. Scientists swallow toy heads to solve burning question Six curious scientists have answered a freaky call of doodie to explore how long it takes for a piece of Lego, the children's toy, to complete its wonderful journey through the body once it's been swallowed.
Paediatricians are often asked how long it will take for the toys to pass out, because if they get stuck in the child's digestive system it could lead to serious problems.
The team headed by University of Melbourne researcher Andrew Tagg swallowed small yellow Lego heads and then monitored their bowel movements for the next few days to check the movement of the toy out of the body in faeces.
However, one of the participants waited two weeks, but returns his head he did not wait - apparently, he just couldn't find it.
Participants ingested a Lego head, and the time taken for the object to be found in the participant's stool was recorded.More news: Hamas Playbook? CNN Commentator Pretty Much Called For The Destruction Of Israel
Six paediatricians from Australia and the United Kingdom in the experiment, swallowed on the head man from Lego and waited complete its passage through the gastrointestinal tract. They even developed a new score to prove this - Found and Retrieved Time (FART).
To account for any individual differences, pre-ingestion bowel habits were standardized by an appropriately named scale, the Stool Hardness and Transit (or SHAT) score.
There was some evidence females may be more accomplished at searching through their stools than males but this could not be statistically validated.
Ahead of the analysis, the participants were assessed for previous gastrointestinal surgery and an inability to ingest foreign objects that would rule them out of gulping down a Lego man's head.
"For most people it was passed after one to three stools". "That should save parents some heartache, unless that Lego head is dearly loved".