the objective of this study consisted in building a theory about parental behaviour in mothers of down？s syndrome childs. the subjects were eighteen mothers with down？s syndrome childs aged between two and nine years old. this interviews were semi-structured and analysed according grounded theory method. in those mothers it can？t be found three majors concerns: development, future and discrimination felted or to be felt by their sons as a part of the society period. dealing with these concerns requires parents to develop strategies like: learn to live, seize the day, positive discrimination, minimize the situation, preparing the rest of the brothers, building self confidence and self-esteem of the child, value the child and his positive characteristics.