September 18, 2025

Why more youth are landing in the ER with vomiting from cannabis use

 Why more youth are landing in the ER with vomiting from cannabis use

Cannabis hyperemesis syndrome — with severe vomiting, abdominal pain and temporary relief through compulsive hot bathing — is increasingly affecting adolescents and young adults.

As cannabis use among youth rises in Canada — and THC potency reaches record highs — emergency departments are seeing a surge in cases of a once-rare condition: cannabis hyperemesis syndrome (CHS).