Breastfeeding is results from a series of biological impulses and instinctive behavior, which were presented to all newborns, and is essential for the health of the child. Despite the encouragement of breastfeeding programs and by health professionals, the interruption of breastfeeding continues to occur significantly and early. The aimed of this study was to verify the feeding practices of mothers enrolled in Basic Health Units in the City of Coari, Amazonas. Data collection was performed by applying a semi-structured, with the main thematic knowledge about breastfeeding, to realize the difficulties breastfeeding, and factors that led to early weaning. In this way, it was found that this population has relevant knowledge regarding the benefits of breastfeeding, and that even with this knowledge, many discontinue the practice of breastfeeding early by the need of future studies, and income, is obtained by entering the labor market.