The incidence of ductal dilatation of the breast has been on the rise in recent years. The age of onset varies, with the younger ones being young women in their 20s, and they are often seen with parareolar abscesses or parareolar fistulas, with parareolar abscesses occurring in young adults, and in the group of 31-40 years old still being the favored age. There are subareolar masses and plasmacytoid mastitis. Symptoms of ductal dilation The early stages of ductal dilation can be asymptomatic, but when some of them become symptomatic, they often appear clinically in the form of nipple discharge, subareolar masses, parareolar abscesses, parareolar fistulas, and plasmacytoid mastitis. A common symptom of ductal dilatation of the breast is nipple discharge. The color of the discharge can be yellow or brownish-green and can eventually become bloody. The nature of the discharge can be watery, or plagioid, or cheesy. When ductal dilatation develops further, a lump is formed under or around the areola. When the inflammation spreads to the surrounding area, the lump expands rapidly, and this process is rapid, often occupying most of the breast within 2 to 3 days. The natural course of breast ductal dilatation varies from a few days or weeks to several years or decades. It can occur singly on one side, bilaterally at the same time, or after one side develops, the other side also develops after a certain period of time, and there are cases where one side develops multiple times. As the disease progresses, the dilated milk duct wall becomes thickened due to inflammatory reaction and lymphoproliferation, resulting in shortening of the milk duct and nipple retraction, with the earliest nipple change being a central depression with a horizontal lip-like change in the nipple, which can gradually develop into an incomplete or complete depression. There are also cases of poor ductal drainage due to pre-existing congenital nipple indentation, which eventually leads to dilation of the milk ducts. If edema is present in the areola, pseudo-cellulite changes may be seen. Treatment of ductal dilatation of the breast Western medicine at home and abroad has traditionally advocated surgery as the mainstay. In some cases, a combination of Chinese and Western medicine can be used to preserve the breast. At present, the “Four Links” minimally invasive and scarless breast conservation therapy is a green treatment combining the ancestral Chinese medicine formula of the ancient Chinese court doctors with the modern minimally invasive technology innovation. This technology integrates the frontier technology of Chinese and Western medicine, and adopts the combination of the secret formula of Chinese medicine, meridian point injection therapy, immune regulation therapy and minimally invasive and painless breast conservation surgery, combining endocrine regulation, immune therapy, acupuncture point injection, biological physiotherapy and minimally invasive surgery. According to each patient’s specific symptoms and sex hormone measurement results, highly effective drugs are used to improve the body’s nutritional supply, regulate endocrine secretion, reduce estrogen, and rapidly ablate breast lumps and inflammation, and treat both symptoms and root causes.