NAMI HelpLine

Psychosis

Diagnosing psychosis involves a comprehensive medical and psychiatric evaluation. A health care provider will review medical and family history, perform a physical examination, and may order lab tests or brain imaging to rule out uncommon medical causes such as infection, epilepsy, brain tumors or head injury. The use of substances can mimic schizophrenia and are an important area to assess, and if needed, treat.

 

Reviewed and updated December 2025

NAMI HelpLine is available M-F, 10 a.m. – 10 p.m. ET. Call 800-950-6264,
text “NAMI” to 62640, or email. In a crisis, call or text 988 (24/7).