Psychosis risk: Psychosis risk refers to the risk that a substance may contribute to symptoms such as hallucinations, delusional thinking or severe loss of contact with reality in some people.
This is an important harm discussion, especially with THC-containing products and relevant psychiatric histories.
NHS public guidance says there is evidence that regular cannabis use in some people can increase the risk of developing a psychotic illness such as schizophrenia.
It is a risk factor discussion, not a certainty statement.