What causes nipple discharge?

Some people do not take good measures to protect their breasts in daily life and are often disturbed by the outside world. Then the nipples may be damaged by bacteria or external physical damage, leading to nipple discharge. These symptoms will be more obvious especially when the breasts are squeezed. If you encounter similar situations, you can understand the cause and control the condition in a targeted manner. What is the reason for nipple discharge? What is the reason for breast discharge?

Nipple discharge is a common symptom of breast disease and can be divided into physiological discharge and pathological discharge. Physiological discharge refers to lactation during pregnancy and lactation, bilateral nipple discharge caused by oral contraceptives or sedatives, and unilateral or bilateral small amounts of discharge in postmenopausal women. Pathological discharge refers to intermittent or persistent nipple discharge from one or more ducts on one or both sides under non-physiological circumstances, lasting from months to years.

1. Diencephalic diseases or pituitary lesions, such as tumors in the diencephalon and its surrounding tissues, prolactin adenomas, pineal tumors, hyperpituitarism, acromegaly, etc.; some patients with this disease have nipple discharge as the first symptom. The color of the discharge is mostly brown, and a few are bloody. This disease is more common in non-lactating or menopausal women over 40 years old. 2. Endocrine system diseases, such as primary hypothyroidism, adrenal tumor, etc.; there is a lump adhered to the skin in the areola area where discharge occurs, with a diameter usually less than 3 cm, and the axillary lymph nodes on the same side may be enlarged, soft, and tender. 3. Chest diseases, such as chronic mastitis, chest herpes zoster, etc.;