The research seeks to understand the construction of the trans "mother-son relationship" through Vygotsky's sociocultural perspective. Since this mother, having constituted herself within a heteronormative society, in which this theme is still seen as a social taboo, her access to information necessary for her to understand and deal with this demand is insufficient. Vygotsky was chosen because he represented the understanding of the relationship between personal development and the sociohistorical context. In his theory, he established important concepts such as mediation, internalization, instruments, signs, symbols, concepts and language that helped the conception of this research. The design used was the bibliographic, using as references materials previously published in books, articles, theses, dissertations, articles and collections available on the Internet. In view of this, it was perceived that it is not an easy trajectory, but the way that the mother conducts this period, for herself and for the child, can harm or strengthen the creation of bond between them.