The authors report the results of a study undertaken in 27 adolescent girls hospitalized for suicide attempts, interviewed according to the same procedure as 46 adolescent girls hospitalized during the same time period for other reasons. A statistical study of the questionnaire used showed answers significantly different, especially concerning grandparents, intra-familial relationships, parental picture, behaviours of adolescents outside their family, school attendance. The whole of these results suggests a disturbance in the communication systems of the suicidal adolescent.