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Screaming + vomiting: ‘Scromiting’ is the mysterious cannabis syndrome becoming more common

A University of Illinois Chicago study links a sevenfold increase in cannabinoid hyperemesis syndrome to cannabis legalization and higher potency products, with 75% of patients using daily.

  • Recently, a University of Illinois Chicago study found diagnosed CHS cases jumped sevenfold from 2016 to 2022, peaking at 33 cases per 100,000 ER visits during the COVID pandemic.
  • Professor James Swartz attributes the rise to state cannabis legalization and high-potency cannabis and concentrates, noting most CHS patients are long-term daily users.
  • Patients diagnosed with cannabinoid hyperemesis syndrome report relentless morning vomiting lasting days with dry heaves and body aches, temporary relief only from hot showers, and harms including 50-pound weight loss and ruined teeth, sometimes called 'scromiting'.
  • Clinicians and emergency departments should consider CHS, as the rise mainly affects young adults aged 35, who often require fluids and stabilization, with abstinence as the only known cure.
  • Research remains in its infancy, prompting calls to study mechanisms including pesticides and terpenes, while the World Health Organization only recently recognized CHS and some cannabis advocates remain skeptical.
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26 Articles

San Gabriel Valley TribuneSan Gabriel Valley Tribune
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Screaming + vomiting: ‘Scromiting’ is the mysterious cannabis syndrome becoming more common

The condition is rare but a study found the number of diagnosed cases is increasing.

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Pioneer Press broke the news in Saint Paul, United States on Friday, January 9, 2026.
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