Unfortunately, not every mammary gland functions in full when fulfils its main function, which is milk production for infant feeding. Most often, the technical errors during breastfeeding the baby cause nipple cracks, maceration and women stop breastfeeding. Engorgement is one of the most common problems faced during natural breastfeeding. The article highlights the issues of the physiology of lactation, discusses the problems arising during lactation, the risk factors for the development of hypogalactia, and describes the rules for using breast pumps to maintain lactation.