Etiology Clinically, the more common cause of poor breast structure, inflammation, tumor compression, breast lobe or lobular duct epithelial shedding or other substances blocking the duct, milk discharge is not smooth and stagnant in the duct, resulting in duct expansion to form cysts, cysts can be secondary to infection leading to acute mastitis or breast abscess, if not secondary to infection can be long-term, the contents of the sac thicken, over time can make the sac The cysts can be hardened by the absorption of water over time. The cyst wall is composed of a thin layer of fibrous tissue, lined with a very thin layer of epithelial cells, which in some places even fall off, and the cyst is lined with light red amorphous structural material and foam-like cells that swallow milk. The disease is a benign breast lesion, and once detected, surgical excision should be considered. Surgery is only required to perform simple excision of the mass, and if it is during lactation and there is secondary infection, the infection should be controlled and the milk swallowed back, and then the mass should be excised and sent for pathological examination. Treatment The number of patients with postpartum breast less has been gradually increasing in recent years in the outpatient clinic. Experts say that a considerable number of these patients do not have real milk shortage, but have blocked milk ducts and poor milk drainage, and Chinese medicine breast drainage techniques can gradually increase the amount of milk to achieve the purpose of breastfeeding. Lactation, acute mastitis, and postpartum lactation are all common diseases among lactating women. Lactation is an important cause and one of the early clinical manifestations of acute mastitis. The modern medical treatment principle for acute mastitis is early application of antibiotics and incision and drainage after pus formation. Chinese medicine believes that postpartum milk stagnation is the direct cause of canker sores and proposes the treatment principle of breast milk drainage. By clearing the lacteal channels, removing milk stagnation and blockage of milk holes, promoting pus drainage, and enhancing local blood circulation to relieve pain and inflammation, the treatment has a double effect. Solution First, apply a small amount of lubricant to the skin of the affected breast, hold the affected breast on the end of the left hand, and then use the four fingers of the right hand, i.e., the index finger to the little finger, to push, knead, and press the affected breast to unblock the lumps and nodules. Then, the five fingers of the right hand are used to gently hold and rub the breast in the direction of the milk ducts from the root to the areola to unblock the milk. Finally, hold the affected areola and nipple with the index and middle fingers of the right hand, and gently lift them outward, so that the milk will be ejected. Repeat the above techniques until the milk is drained and the breast is soft. However, it should be noted that it is more effective to irradiate the affected area with a divine light for 10-20 minutes to fully dilate the milk ducts, and then use Chinese medicine to treat it.