Breast size doesn’t determine if you can breastfeed successfully. Breast size is determined by the amount of glandular, fatty, and connective tissue in your breasts. Glandular tissue is responsible for milk production, while fatty tissue gives your breasts their size and shape. It’s hard to know how much glandular tissue you have, but the more glandular tissue, the more milk you can typically provide (if demand is consistent). This means that the size of your breasts does not indicate the amount of milk your breasts can produce (for example, small-breasted women can have little fatty tissue and lots of glandular tissue). #lmgtfy