The older generation said: “male babies do not squeeze the nipple will cause the breast to grow very large”, “female babies do not squeeze the nipple to grow up nipple easy to sink”. Is this really true? Do babies really need to squeeze their nipples? What is the cause of swollen breasts in newborns? In the first week or so of life, regardless of whether it is a boy or a girl, the baby’s breast will appear mildly swollen, small like the size of a soybean, or even as big as a walnut, some babies can even see the areola, and there will be a small amount of milk overflow. See here, some parents will say, “to hurry to the child to squeeze the nipple”! Hurry up and “stop!” Because this is actually a normal physiological phenomenon. During the fetal period, the baby draws the nutrients needed for growth from the mother’s body through the umbilical cord of the placenta, and in the process, some substances that are not needed are passed to the fetus through the placenta, such as: small amounts of estrogen, progesterone and prolactin. After the birth of the baby, the sudden interruption of the supply of these hormones causes the release of prolactin, which stimulates the enlargement of the mammary glands, causing the breasts to swell and produce milk. After 2 to 3 weeks, the level of hormones received by the newborn from the mother gradually decreases, and finally all of them are broken down and excreted, and the swollen breasts disappear without special treatment. So, the old generation of people “boy nipples do not squeeze will lead to larger breasts”, “girl nipples do not squeeze will lead to grow up nipple sunken or breast ducts do not work” and other statements are not scientific. The dangers of excessive squeezing of the nipple: Excessive squeezing of the baby’s breast is a very dangerous thing. The result is that the baby’s nipples were severely infected, and although the baby’s life was saved, it left unsightly scars that will lead to asymmetrical development of both breasts and will affect breastfeeding later, making the innocent baby a victim of stupidity. Why is nipple milking so harmful to babies? This is because a newborn baby’s skin is very delicate and its resistance is weak. Squeezing the nipple may lead to breakage of the baby’s skin, allowing bacteria to take advantage of the situation and cause inflammatory reactions such as redness, swelling and pain in the breast, leading to the occurrence of mastitis. If the redness and swelling is large, it can also be accompanied by high fever (39 degrees or more), milk refusal and sleep disturbance. If the bacteria cause spread throughout the body, sepsis may also occur, endangering the life of the newborn. Newborn baby breast care methods: 1, pay attention to keep the breast clean and dry. When cleaning the baby’s breasts, be sure to avoid squeezing or scrubbing hard to avoid damaging the baby’s delicate skin. 2, compared to new clothes, clean cotton old clothes more soft, can avoid the delicate skin abrasion. 3, when the newborn baby’s breasts appear mildly swollen, parents can use saline to gently scrub the swollen area, or use 0.5% vital iodine to carefully apply.