There are about 16 milk duct openings on the nipples of normal breasts, and each opening forms its own lactation duct system, so breast overflow should first be observed to see if it is overflow from multiple parts of the bilateral nipples. If it is overflow from multiple parts of the bilateral breasts, it is obvious that multiple lactation systems in both breasts are affected, and then since the breasts are endocrine target organs, this lactation is obviously the result of the influence of hormones such as prolactin, and therefore Bilateral breast overflow is usually not a problem of the breast itself, as it is unlikely that multiple lacteal duct systems are affected together. Therefore, bilateral breast overflow first needs to be found in the organs that govern the breast; the breast is controlled by endocrine hormones, so changes in the body’s endocrine secretions can affect the breast, and female endocrine secretions are affected by many factors, such as menstruation, pregnancy, miscarriage, menopause, and even emotional changes can cause endocrine disorders and transient elevations of prolactin, which can lead to lactation, especially in postpartum Women, therefore, in most cases, bilateral lactation, especially transient, sporadic, sporadic, menstrual cycle-related lactation or clear overflow, is normal. However, it must be noted that a few cases of long tumors in endocrine organs such as the adrenal glands and pituitary gland can also lead to an elevation of prolactin in the body, resulting in bilateral lactation. Therefore, if the above-mentioned condition is not transient, it is necessary to go to the hospital for endocrine hormone measurements and even imaging of the relevant areas to exclude organic tumor lesions.