Acute septic mastitis often occurs during lactation, especially during the first 1-2 months after delivery, so it is also known as acute lactation or puerperal septic mastitis, and it is important to prevent acute mastitis from the late pregnancy period and to do a good job of puerperal health care. Prevention of acute septic mastitis is an integral part of health care for women in the puerperium. By understanding the causes of acute mastitis, prevention is not difficult. The key is two things: to prevent milk stagnation, to keep the breasts locally clean and to keep the mother physically and mentally healthy. During the last 2 months of pregnancy, it is important to be prepared for breastfeeding. First of all, keep both breasts clean and wash the nipples frequently with water or 3% boric acid water. Be careful not to use soap-based cleaning products to clean the breasts, because during pregnancy, the secretions of the sebaceous glands and sweat glands on the breasts will increase, and these substances can acidify the skin surface and thus play a protective role. If you often use soap to wash away the protective layer, or even wash away the grease that protects the skin of your breasts, it is easy for the surface of your breasts to become broken and cracked, and for pathogenic bacteria to invade and cause infection. The early sucking of the baby will stimulate lactation, which will not only increase the amount of lactation, but also promote the smooth discharge of milk and prevent bruising, which is very important for the prevention of mastitis. If the nipples have congenital deformities, such as sunken nipples and splitting, you should find ways to correct them in the early and middle stages of pregnancy. Pull the nipple by hand often, or use a breast suction device or negative pressure cupping device to suck out the nipple, l to 2 times a day. Sleep in the best position on your back to avoid squeezing your breasts sideways. Choose a suitable bra to not make your breasts feel compressed, and avoid external force against your breasts during normal activities. During breastfeeding, it is especially important to do the following four things to prevent and control acute mastitis. First, it is necessary to take supplements according to individual needs. Some mothers do not have a smooth start in breastfeeding, so their families rush to stew fish soup and pig’s feet soup to supplement the mother’s body. In fact, this practice is not always appropriate. First of all, we need to distinguish what is the cause of low milk? Is it due to low milk production or milk stagnation in the milk ducts? In other words, it is important to identify whether the milk is real or fake. The reason for this is that in many cases, milk is being secreted continuously, and more and more is accumulating in the breasts, but because the ducts are not yet open, they cannot be discharged smoothly, giving the appearance of “not much milk”, that is, pseudo-milk, and at this time, the supplemental milk food can only have the opposite effect and can easily lead to acute mastitis. The second thing is to keep your breasts clean. The actual fact is that you can use gauze to clean your breasts with warm water and then breastfeed. Never use chemicals like soap and alcohol to scrub your nipples, otherwise it will make your nipples’ local defenses drop and dry out your nipples leading to bacterial infections. The actual fact is that you will find a lot of people who are not able to get a good deal on this kind of things. It should also be prevented, three, is the correct breastfeeding. Advocate regular breastfeeding, every 2 to 3 hours is appropriate. The two breasts are alternately fed, preferably with equal opportunities, to prevent asymmetry between the two breasts after breastfeeding, to empty the breasts and not to accumulate milk. When one breast is full, use a breast pump to suck up the other breast. Do not let the baby sleep with the nipple in his mouth after breastfeeding, as the baby’s saliva contains digestive enzymes, which can cause the milk to form cheese-like substances and block the milk ducts, resulting in poor milk drainage and even stagnation. Breastfeeding posture should be correct, preferably in a sitting position, and less in a lying position. After breastfeeding, the baby should be held upright, with his head resting on the mother’s shoulder, and his back gently patted. This will allow the baby to expel the air inhaled during breastfeeding by burping and prevent spitting up. Wearing a suitable bra after breastfeeding can not only hold up the breasts and keep the internal blood circulation of the breasts smooth, but also help to correct sagging breasts. Fourth, it is open breast massage. Women who give birth by cesarean section often have slow milk production and insufficient milk at the beginning, so they need timely milk opening massage. Manual milk discharge time should be 20 to 30 minutes each time, and a single time should not be too long. If a milk discharge does not work, simply increasing the massage time will only increase the probability of local edema. The correct massage technique is to first apply paraffin oil or Kessler to lubricate the skin, slide your fingers from the outer edge of the breast to the areola, and then lift the nipple up and down several times to cause local negative pressure under the areola, thus achieving a role similar to that of a baby sucking. In addition to the stimulation of massage techniques, the end of the massage can let the child sucking to increase the drainage reflex, so that after the dual role of massage plus sucking, the effect will be better, can reduce the occurrence of acute mastitis. The actual fact is that you should keep the environment clean and emotionally stable, avoiding anger and anger. The temperature and humidity of the maternity room should be appropriate, generally 22 to 24 ℃ is appropriate, the indoor air should be fresh. Some people think that women are afraid of wind, easy to sweat, cold and cold, so the doors and windows are closed tightly, the indoor air is dirty, which is not good for women and babies. In addition, the proper diet, bowel movements, emotional stability is important for the mother. The Chinese medicine believes that acute mastitis is the result of liver stagnation and gas stagnation and stomach fire. If the liver is depressed, the milk ducts will be blocked. If you are frightened and angry, your lactation will stop. So be comfortable, emotionally stable, and usually pay attention to prevent trauma to your breasts from being squeezed and hit, which are important to prevent mastitis. The bruised milk lumps can be cold compresses with ice packs, not hot compresses, not just rub and press, the so-called non-massage.