The ACOG recommends exclusive breastfeeding for the first 6 months of life, with continued breastfeeding while complementary foods are introduced during the infant’s first year of life, or longer, as mutually desired by the woman and her infant (ACOG CO 820; 2021). Problems may arise that can keep women from achieving their breastfeeding goals, and only 25.4% of women are breastfeeding exclusively at 6 months. One of the most common reasons women stop breastfeeding is engorgement, which could lead to lactational mastitis due to milk stasis. In this episode we will review the current best practice plans for lactational mastitis and one its complications, breast abscess. Plus, new data regarding the pathogenesis of lactational mastitis is challenging the old traditional model of causation; we’ll explain in this episode.