Relationship of the type of breastfeeding in the sexual function of women.

Objective: to relate the type of breastfeeding in the women's sexual function.

Method: a cross-sectional study conducted with 150 women in the postpartum period registered in the Family Health Strategy of a large Brazilian municipality. Two instruments were used: one for characterizing sociodemographic, obstetric and breastfeeding variables, and the Female Sexual Function Index for the sexual function.