Aim: To investigate burnout in nursing professionals working in a Psychiatric Complex. Method: exploratory, quantitative research conducted with 42 nursing professionals. For the collection, we used an instrument consisting of sociodemographic and professional data, and the Cuestionario para la Evaluación del Síndrome de Quemarse por el Trabajo – CESQT. Results: when considering the percentile, 17 (40.5%) nursi...