Mastitis is a common breastfeeding disease among women. Keeping the breast open is the most effective way to prevent mastitis, and the mammary department of Chongqing Hospital brings health to all breastfeeding women through the manual breast drainage method. Let the baby enjoy the most natural diet and let the mother get the happiest life. 1. Wash both breasts with warm water; 2. Apply hot or cold compresses to the breast outside the areola and nipple for about 15 minutes. For those whose breasts are more open, use a towel with a slightly lower temperature than the skin, while for those with milk stagnation, it is easy to use a towel with a slightly higher temperature than the skin. 3, clockwise massage of the breast, 3 to 5 minutes. The force should be moderate, for lactation stagnation parts can be extended massage time. 4.Place your thumb and index finger on the outer edge of the areola, first press the breast vertically, down to 1-2cm, then close your thumb and index finger while doing an upward lift to squeeze out the milk. Do not slide between your fingers and the skin of your breasts. 5.After the “cross”, continue the above actions until all the milk ducts are clear. 6. Continue with 4-5 movements or use a breast pump. The above is a six-part manual breast drainage method.