Current empirical understanding of the relationship between psychopathology and terrorist behaviours in women is limited, because most research focuses on male perpetrators and relies on secondary sources. Addressing this gap is crucial, particularly given previous research that highlights significant differences in mental health problems between women and men involved in non-terrorist violent activities.

To empirically examine the presence of psychopathology in women exhibiting terrorist behaviours, as well as its potential role in these behaviours.

A case series study of 14 Dutch female convicts associated with the (so-called) Islamic State of Iraq and Syria (ISIS), examining the occurrence and types of mental disorders, psychopathological problems and pathological personality traits, and exploring their potential role in terrorist behaviours based on forensic mental health reports from psychiatrists and psychologists.

Half of the women (n = 7) exhibited mental disorders during terrorist activities, primarily personality disorders. Psychopathological problems included susceptibility to influence (71%, n = 10), identity problems (64%, n = 9), feelings of inferiority (57%, n = 8) and naivety (50%, n = 7). A significant link between terrorism and mental disorders, psychopathological problems or pathological personality traits was identified in almost half of the women (43%, n = 6).

Psychopathology is present in some women involved in terrorist behaviours, influencing their involvement, but is absent or irrelevant in others. Identifying psychopathology in women with terrorist tendencies is essential for early prevention and should be a core competency for psychiatrists.