The topics presented in this paper aim to answer three questions. The first: what is it that justifies the changes of contemporary psychopathological forms? The second: why resort to the group when treating anorexia and bulimia? The third: when working with patients with eating disorders, which are the factors that make group work therapeutic? The theoretic approach that will be adopted regarding the subject in contemporary clinical practice is that of psychoanalysis of Lacanian orientation. Particular focus shall be placed on work carried out by the psychoanalyst Massimo Recalcati over the last fifteen years.