This is a case study aimed to identify and discuss the place of the grandmother as parental support for a 15-year-old patient. It was based on reports of their psychotherapy sessions, which showed the helplessness of the adolescents regarding the lack of a social safety net and institutional and pointed the mother's fragility to resist the acts of destructiveness imposed by her teenager. It was found that the grandmother occupied a place of emotional support for this teen as her mother had difficulties in exercising her parental role. The adolescent in psychotherapy could work challenges related to her mother and grandmother. It is hypothesized that adolescent transgression relates to conscious or unconscious signification that searches limits and directed the recognition of these two female figures. The psychotherapeutic process allowed this teen to experience her instinctual challenges, without feeling threatened or invaded by them.
Adolescence; Grandparents; Parental support