Cultural factors are widely acknowledged to play a part in the psychogenesis and manifestation of anorexia nervosa. The pathogenic factors associated with this syndrome include a demand for autonomy that is thwarted by restrictive family dynamics, reflecting the norms imposed by a given culture on parenting and relationships with adolescents. A review of recent cross-cultural data shows a significant increase in the number of cases in countries thought to be impervious to this syndrome. One explanation could be the emergence of new social dynamics, resulting in the emergence of pathogenic factors that put adolescents, especially girls, at risk. Looking at the case of an anorexic adolescent from Morocco, we interpreted this syndrome as a bond pathology that only manifests when it is compounded by a dysfunctional family situation and unfavorable cultural factors. Our conclusion is that poorly managed interculturation can increase the effects of suffering linked to pubertal transformations, which are all the more difficult to cope with when the demand for psychic autonomy is thwarted by an overbearing maternal bond.