<![CDATA[Exclusive breastfeeding during the first six months of life is an important strategy to support infant growth and Successful development​ exclusive breastfeeding is influenced not only by maternal and infant conditions but also by family support and maternal confidence in her ability to breastfeed , known as breastfeeding self-efficacy. This study aimed to determine the relationship between family support and self-efficacy with exclusive breastfeeding success among postpartum mothers . An analytical observational study with a cross-sectional design was conducted at a primary health care facility in an urban area from May to July 2026. The sample consisted of 93 postpartum mothers selected using purposive sampling. Family support and breastfeeding self-efficacy were assessed using questionnaires , while exclusive breastfeeding success was assessed through interviews regarding the infant's history of food and fluid intake . Chi- square tests were used for bivariate analysis. The results showed that 58 respondents (62.4%) received good family support , 55 respondents (59.1%) had high breastfeeding self-efficacy , and 61 respondents (65.6%) succeeded provided exclusive breastfeeding . Exclusive breastfeeding success was 75.9% among mothers with good family support compared with 48.6% among mothers with inadequate Exclusive support​ breastfeeding success was 78.2% among mothers with high self-efficacy compared with 46.1% among mothers with low self-efficacy. Chi- square analysis demonstrated significant associations between family support and exclusive breastfeeding success (p=0.011) and between breastfeeding self-efficacy and exclusive breastfeeding success (p=0.004). Family support and breastfeeding self-efficacy were associated with exclusive breastfeeding success among postpartum mothers]]>
