This study analyses both the implications of the generational psychic transmission and the main intersubjective processes of a family group which are involved with the sickness of the body of one or more group members under study. The contents regarding the existent intersubjective processes in the family as well as the family history through the psychic transmission of a legacy were well-founded and articulated with the conception of body and somatic sickness, recovering relevant Freudian contributions and researches developed by authors contemporary to psychoanalytical psychosomatics studies as well. The relation between family group and sickness of the body was analyzed by means of a case study. Having a script of questions as base, interviews given by a low middle class family coming from a rural area of Minas Gerais state and whose members presented multiple sickness such as cancer, high blood pressure and diabetes in several generations were transcribed. The family history was then analyzed by taking the process of generational psychic transmission while the family intersubjectiveness was studied by taking the psychic processes present in the group facing somatic sickness. A close relation between the sickness process of one or more subjects of the family group and the low libidinal investment within the link was found as well as the incidence of a phantom inherited from other generations, nourished by the subjects´ phantasies and incorporated in some members´ disease. The discussion of the theme family and sickness of the body contributes for a better understanding of the meaning given by the group to the sickness process. This meaning made it possible to perceive the sickness function as a condition for uniting fraternal, paternal and maternal bonds among members, mainly restoring the function of the maternal figure, which was disinvested and lost in this story.