Introduction: Despite the general agreement that normal jealousy is heterogenous, little is known about this specific topic.
Methods: In the present study, we explored the possibility of distinguishing between four subtypes of "normal" jealousy (depressive, anxious, obsessive, and paranoid) amongst a cohort of 500 healthy university students by means of a specifically designed questionnaire, "Ouestionario della gelosia" (QUEGE). QUEGE is a self-report instrument of 30 items which explores the presence, frequency, and duration of feelings and behaviors related to jealousy.