This study intends to investigate and problematize the mother-daughter relationship, as long as it presents itself as troubled and passionate. To reflect about this type of relationship, Lacan treated it as a consequence of the feminine joy, using the term devastation. The essay approaches the difficulties and specificities of this relationship initially from the examination of Freud s considerations about the Oedipus complex as what concerns its location, from Oedipus complex to a subjective position in the sex partition. Afterwards, it approaches Lacan s indications about the feminine joy, as the joy that is not entirely covered by the standardize that comes from the Oedipus complex in a child. This joy would be the one which a woman cannot say anything about it, because there is no specific symbol of the feminine sex that would allow her to articulate knowledge and joy, such as it happens to the man. It is highlighted the difficulty in the mother-daughter relationship as a problematic identification, as soon as it is necessary to the girl to separate from her mother at the same time that she needs to identify herself with her mother.