Nipple discharge is one of the more common symptoms of breast disease, and may also be one of the clinical manifestations of many diseases throughout the body. There are many reasons for nipple discharge, including physiological and pathological, which may also be one of the manifestations of breast malignancy. Therefore, you should be vigilant about nipple discharge and not take it lightly. The nature of the spilled scale and the circumstances of the spill should be carefully observed. Now the common situations of nipple discharge are introduced as follows: 1. Is the discharge true or false? True discharge refers to the fluid flowing out of the breast ducts. Pseudodischarge is common in patients with sunken nipples. Due to the accumulation of exfoliated nipple cells in the sunken areas, a small amount of fluid-like bean dregs oozes out, often with a foul odor. Once the inverted nipple is pulled out and the area is kept clean, the "discharge" will disappear. 2. Is the discharge physiological or pathological? Bilateral discharge may be physiological. Within one year of stopping breastfeeding, most women will still secrete a small amount of milk; in the middle and late stages of pregnancy, some pregnant women can squeeze their breasts. A small amount of light-colored colostrum is produced; after a strong orgasm, a few women may experience short-term galactorrhea due to highly congested breast blood vessels, enlarged breasts, and erect nipples; when women enter menopause, endocrine disorders will cause some women to secrete Small amounts of milk. The above are all physiological conditions, not pathological conditions. Nipple discharge can also be pathological. For example, a disease called amenorrhea-galactorrhea syndrome is caused by pituitary microadenoma. In addition to galactorrhea, it is also accompanied by amenorrhea, headache, narrowed vision, and elevated prolactin in the blood. Brain CT examination can confirm the diagnosis. Another type of double nipple discharge is seen in patients with a little breast hyperplasia. 3. Is the discharge a single hole or a multi-hole nipple? There are 15-20 milk duct openings. When overflow occurs, observe which opening or openings the liquid overflows from. Single hole discharge is mostly intraductal papilloma of the breast. Porous discharge may be physiological, drug-induced, systemic benign disease, or breast hyperplasia. 4. Whether the discharge occurs on its own or after squeezing, the former is mostly pathological. About 13% of patients with breast cancer have a history of spontaneous discharge. Benign or physiological discharge is more common after squeezing. 5. Characteristics of discharge. Different breast diseases have different characteristics of discharge. For example: (1) Milk-like appearance: Most of them are physiological, such as shortly after weaning or abortion, and are not a sign of malignant transformation. (2) Purulent discharge, mostly due to duct ectasia and plasma cell mastitis. (3) Light yellow discharge is the most common type of discharge and is seen in almost all breast diseases, with mammary gland hyperplasia being the most common. There are also some cases of intraductal papilloma or malignant transformation of the breast. Therefore, this requires heightened vigilance. (4) Bloody discharge can be bright red, brown, light yellow, brown and other different colors. This kind of discharge is a sign of danger and should be highly vigilant. 50%-75% of it is intraductal papilloma and 5% is breast malignancy. (5) Clear water-based discharge, colorless and transparent, occasionally sticky, leaving no trace after overflow. This kind of discharge may be a sign of malignant transformation of the breast and should be further examined.

In short, nipple discharge is an important breast symptom, 10%-15% of which may be malignant breast transformation. It is recommended that you go to a regular hospital as soon as possible