Objective: To identify the knowledge, attitudes and practices related with breast feeding (BF) in women in reproductive age residents in the settlement Marías of the Municipality of Girón in the year 2005. Subjects and method: A survey of Knowledge, Attitudes, Practices (CAP) was applied to 96 women in fertile age from the Marías settlement. The data were entered and validated in Epi-Info 6.04 and analyzed in Stata 8.2. Central tendency measures were used to analyze the continuous variables; the categorical variables were expressed as proportions. Results: 78.1% of the participants had children. Only 13% had knowledge on the correct form of breastfeeding, 49% did not know the methods for maternal milk conservation, and 69.8% of the participants had a support attitude to breast feeding. The average nursing time was 5.7 months. Complementary feeding was frequently initiated with broth (88%). Conclusions: A considerable proportion of women of the study gave BF less than six months, they initiated complementary feeding before the 6 months and BF was suspended when the infant suffered some illness.