Guernsey Investigates Surge in Cannabis-Linked Mental Health Cases

Guernsey's director of public health has announced an investigation into a concerning rise in cannabis-related admissions to the island's mental health ward over the past four years. Reports indicate that in 2025, cannabis accounted for 18% of admissions, totaling 22 patients. This figure represents a general increase since 2021, when cannabis-related admissions stood at a mere 2%.

Although admissions saw a slight reduction from a peak of 25% in 2023, the ongoing trend is a significant concern for health authorities. The Misuse of Drugs advisory group and the chief pharmacist are involved in the investigation. Prior to the introduction of medicinal cannabis in 2019, cannabis-related admissions were around 4%. It is not yet clear whether these patients used prescription or illicit cannabis products.