Lactogen is a basic hormone in the human body that generally maintains the lactation function of women and provides proper nutrition for newborns. In addition, it can also maintain the balance of the relative ratio of hormones in the body and maintain the endocrine balance of the body. If a woman has a high level of lactogen during breastfeeding, it tends to lead to excessive milk secretion from the breast. If the milk is not eliminated in time, it tends to lead to the deposition of various substances in the mammary glands, causing symptoms of breast swelling and also inflammatory infections. This disease is also common in men and tends to lead to large, feminized male breasts. In the early stages, it can be treated with anti-inflammatory and antibacterial medications, but if it affects the body’s lymphatic system at a later stage, it is necessary to use surgery to remove part of the breast to maintain the body’s endocrine balance and prevent widespread inflammatory infections.