Breastfeeding provides numerous health benefits for infants, children and women. The American Academy of Pediatrics, American Association of Family Physicians and other organizations recommend exclusive breastfeeding for the first six months of life. In spite of the overwhelming evidence showing the benefits of breastfeeding, breastfeeding data at the project site indicated Hispanic women face significant barriers to breastfeeding. Will the conduction of phone interviews within a Hispanic population of women who have stopped breastfeeding by four weeks postpartum identify barriers to their breastfeeding continuation? Bandura’s Self-Efficacy Theory states that individuals with high levels of self-efficacy will endure and persevere in learning new tasks. The objectives of this project are to conduct phone interviews using a series of questions eliciting information on breastfeeding experiences, and identify barriers to breastfeeding from interview responses using Grounded Theory Method. Study participants will be Hispanic women who had initiated breastfeeding and stopped by the four week postpartum visit. Participants discussed their breastfeeding experiences during tape recorded phone interviews. Responses were transcribed verbatim in Spanish then translated into English by an interpreter. Grounded Theory was used to identify themes and barriers to breastfeeding. The Grounded Theory was selected to identify barriers. Data collection involved conducting interviews with the subjects using a translator to ensure content accuracy and understanding of cultural nuances. Seven Hispanic women completed phone interviews conducted by an interpreter and the author. Five themes were identified: maternal efforts, low milk supply, guilt/shame for failure to breastfeed, family support and external support. Three cultural influences that promote breastfeeding were: the influence of emotions on the condition of breast milk, the use of grains for improving milk supply and the use of herbs and liquids to increase milk supply. Breastfeeding education in the antepartum and postpartum periods should be targeted at promoting exclusive breastfeeding and assisting women in learning different strategies to assess adequacy of milk supply. Contact with breastfeeding mothers should occur in the first two weeks postpartum in order to identify breastfeeding problems. Health care providers, lactation consultants and peer support women should be receive training on cultural practices that inhibit breastfeeding in the Hispanic population.