The yellow water is squeezed out of the breast.

Generally speaking, if nipple discharge is on both sides, it may be a physiological or systemic disease. For example, when a newborn baby is just born, the level of estrogen produced in the mother's blood is high, and a small amount of milk can be secreted within 1 to 2 weeks after birth. Galactorrhea-amenorrhea syndrome caused by hypothalamic pituitary diseases in adults.

If the nipple discharge is on one side, it may be a physiological change, and more common local diseases, such as breast tube disease and breast cancer.

If it is a porous structure discharge (by observing whether the discharge is a little or more), it can be seen in physiological cases, and can also be common in cases with a large range of diseases, such as breast tube enlargement syndrome, breast hyperplasia, etc.;

If it is a single-hole discharge, it can be seen from the changes in a certain tube, such as intratubular papilloma, intratubular papillary carcinoma, etc.

Don't keep irritating or squeezing it. If there is a problem, the bacteria will flow back into the mammary duct through squeezing.

If the overflow is spontaneous, it generally means that there is a lot of fluid accumulated in the tube and it is still being metabolized, and it is likely to be a large-scale physiological overflow. If the overflow is squeezed out, it means that there is less liquid accumulated in the hose, and the overflow after squeezing a certain position can often remind that the position may be diseased.

Observing and identifying the characteristics of nipple discharge is of great significance in finding the cause of the discharge. Generally speaking, milky discharge often manifests as autonomous overflow of bilateral porous structures during non-breastfeeding period. Its color and characteristics are like defatted milk. It is often caused by hypothalamic pituitary nerve dysfunction and abnormal increase of prolactin level in the blood.

Serous discharge is often squeezed out, and rarely it is spontaneous overflow, often wetting clothes, and can occur on one or both sides. The discharge is thin, transparent, slightly yellowish or dark brown or thick. It is mostly caused by normal breast diseases, such as fibrocystic fibrosis, mammary gland enlargement syndrome and intramammary papilloma. A few serous discharge can be caused by breast cancer.

The discharge from the breast sampling is usually unilateral and is thin and colorless like cold water. It is often caused by tumors. Some breast experts often say that about 50% of the discharge from the breast sampling may be cancer.

Purulent discharge often occurs on one side, overflowing spontaneously or being squeezed out. It is mostly emerald green or yellow-brown, viscous, thick, and may contain blood. It is common in inflammatory breast diseases such as enlarged breast tube syndrome.

Persistent discharge often occurs on one side, overflowing spontaneously or squeezing out. The discharge is bright red, light red, light brown or coffee-colored. It is often caused by intrauterine papilloma, and can also be common in breast cancer, fibrocystic fibrosis or mammary gland enlargement syndrome.

Because malignant diseases are more likely to cause persistent discharge, clinical medicine should be more alert to the possibility of malignant diseases in patients with persistent discharge.

In short, if nipple discharge occurs, no matter what method or characteristics of the discharge, it should be taken seriously, because nipple discharge during the non-breastfeeding period is mostly a manifestation of various breast diseases.