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Cannabis hyperemesis syndrome cases surge in Virginia: What is it?

By The Hill  
   February 12, 2026

Emergency department visits linked to cannabinoid hyperemesis syndrome (CHS) have increased nearly 29 percent over a five-year period in Virginia. According to the Virginia Hospital & Healthcare Association Data Analytics Teams, the annual adult emergency department visits for cases of cannabis abuse, dependence, poisoning diagnoses, and CHS all rose during the period from 2020-2024. There were 24,960 total visits associated with CHS specifically. Annual visits rose from 4,027 in 2020 to 5,175 in 2024. Additionally, there were 172,778 adult emergency department visits for cannabis abuse, dependence or poisoning diagnoses from 2020-2024. It has been more than 31,000 visits each year over that period, with a peak of 37,690 in 2022.

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