In the Year of the Dragon, many small families choose to have a dragon baby in the Year of the Dragon. This year, the number of mothers has increased exponentially compared to previous years, and with it, the number of puerperal and breastfeeding-related diseases has also increased, so we have prepared a general knowledge of mastitis during breastfeeding for new parents, new grandparents and grandparents. Acute mastitis is an acute purulent infection of the breast tissue caused by pathogenic bacteria that invade the breast and grow and multiply in it. It is a common disease in the puerperium and is one of the causes of postpartum fever. It is most common in breastfeeding women, especially first-time mothers, and often occurs 3 to 4 weeks after delivery. Although there is a special treatment for this disease, the onset is painful and the destruction of breast tissue causes breast deformation, which affects breastfeeding. Prevention of milk stagnation Solve the problem of untimely milk discharge Young mothers have no breastfeeding experience, babies cry, always worry about the lack of breast milk, and are eager to get it done, blindly eating foods to promote lactation too early after delivery, resulting in a large amount of milk secretion for a short period of time, mammary lymph node reflux obstruction or pay milk stagnation, causing breast swelling. In addition, in recent years, due to various factors, there is a rising trend of caesarean section, mothers are afraid of postoperative wound pain, mothers refuse to breastfeed after surgery because of incision pain, babies do not suck in time to unblock mammary ducts, breasts become hard and painful, nipples become relatively short, babies have difficulty sucking, and milk secreted from the breast is not discharged in time. In addition, the baby should be sucked early and diligently after delivery, and the nipples should be cleaned and warmed before breastfeeding to promote the smooth flow of milk or stimulate, rub and pull the nipples to induce milk discharge first. Do not make rigid rules about the time and interval between breastfeeding sessions, but nurse on demand, because newborns are too small, have weak sucking power and are easily fatigued and hungry. If the baby’s sucking ability is insufficient or if the baby’s food intake is small, use a breast pump to suck up all the milk, change the concept of not wanting to waste milk, and when special circumstances prevent breastfeeding, express milk regularly to empty the milk and keep the milk ducts open. The nipple skin is delicate, especially for new mothers, and can become edematous, erosive or cracked when sucking after delivery, and can become stagnant when the mother refuses to breastfeed due to severe pain. Therefore, before pregnancy, the nipple should be stretched and rubbed frequently to thicken the skin. At the same time, repeated stimulation, pulling and rubbing of the nipple can restore the sunken or short nipple to its normal size, but it should be treated early and consistently. Some patients with severe nipple depression or no nipple at all can only be treated immediately after delivery by withdrawal. The nipple and most of the areola should be placed in the baby’s mouth during feeding and the baby should be allowed to suckle and hear rhythmic sucking and swallowing sounds. Otherwise, the baby will not be able to suck out the milk well enough, but will push harder, and the force will only work on the nipple, making it easy to break the nipple. When you stop breastfeeding, gently press the baby’s chin and gently interrupt sucking without pulling out. Avoid prolonged pressure on the breast when nursing on the side, which affects blood circulation, and wear loose clothing. If you do not have the opportunity to breastfeed your baby, you should drain the milk once every 1~2 hours to keep the milk flowing smoothly. You should also pay attention to cleaning and scrubbing the nipples on a daily basis. Pulling, squeezing and sucking on the nipple and areola area will cause the whole excretory system to contract, making it easier for milk to flow out. The more milk is drained, the more milk is produced. It is not advisable to use a breast pump to pump milk, but to allow the baby to suck directly on the nipple, and the breast pump should only be used to drain the milk when the nipple is eroded or cracked. Each time you start breastfeeding, you should first pull and squeeze the nipple and areola for a while to induce milk before letting the baby suck, or use both hands to massage from the peripheral part of the breast to the nipple to fill the milk ducts and bring the milk to the nipple, so that the baby can easily suck the milk. Both breasts should be nursed at a time, and it is best to suck up the milk from both breasts, otherwise it is not necessary to suck up one side and then the other. If both breasts are symmetrical, the breastfeeding time should be equally divided, while if both breasts are asymmetrical, the smaller breast should be nursed more, while the opposite is true for the larger breast. If you nurse more, you will produce more milk and your breasts will become bigger. If you breastfeed less, you will produce less milk and your breasts will not increase in size. Therefore, when there is a slight asymmetry in the development of both breasts, it can be remedied by breastfeeding. In general, prevention of the disease is more important than treatment. For young parents who are inexperienced, they should consult with an obstetrics and gynecology or mammography specialist before giving birth, and follow a scientific approach to breastfeeding and effective breast care after delivery.