In Brief

No Laughing Matter: A Woman's Guffaw Results in a Dislocated Jaw

The woman received help from a doctor who happened to be riding on the same train.

woman holding her jaw
(Image credit: ANN PATCHANAN/Shutterstock)

A woman aboard a train in China let out a laugh so boisterous that she dislocated her jaw, according to news reports.  

While traveling to Guangzhou South Railway Station in southeast China, the unfortunate passenger got stuck with her mouth agape, drooling and unable to speak properly after a booming burst of laughter, according to the India-based news outlet News18. Unbeknown to the woman, her lower jawbone had become unhinged from her skull. A call for help was sounded over the train's speaker system and a doctor on board named Luo Wensheng came to her aid. 

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Nicoletta Lanese
Channel Editor, Health

Nicoletta Lanese is the health channel editor at Live Science and was previously a news editor and staff writer at the site. She is a recipient of the 2026 AHCJ International Health Study Fellowship, with a project focused on antibiotic stewardship practices in Japan and the U.S. They hold a graduate certificate in science communication from UC Santa Cruz and degrees in neuroscience and dance from the University of Florida. Beyond Live Science, Lanese's work has appeared in The Scientist, Science News, the Mercury News, Mongabay and Stanford Medicine Magazine, among other outlets. Based in NYC, she also remains involved in dance and performs in local choreographers' work.