The necessity, validity, and clinical utility of a new diagnostic entity: Acute suicidal affective disturbance

Here we argue for the necessity, validity, and clinical utility of a new diagnostic entity, acute suicidal affective disturbance (ASAD).

We expand on the conceptual, clinical, and practical rationale for ASAD, propose its defining features, describe research results to date, and suggest avenues for future research.

There is accruing evidence for the existence of a previously unclassified, rapid-onset mood disturbance that geometrically escalates and regularly results in life-threatening behavior.

ASAD research may not only improve the field's understanding of suicidal behavior but also enhance clinical effectiveness and save lives.