cases were more common in states where cannabis is legal, younger users saw more cases in states where it remains illegal.Buy Maps
CHS Officially Recognized
The World Health Organization formally recognized CHS on October 1, 2025, giving it an official diagnosis code. Carlini explained the significance:
“A new code for cannabis hyperemesis syndrome will supply important hard evidence on cannabis-adverse events, which physicians tell us is a growing problem.”
With emergency room visits climbing, experts warn that cannabis users—both teenagers and adults—need to be aware of this potentially debilitating
