Breast leakage in women can be a normal phenomenon, or it can be caused by disease factors, such as mastitis or intraductal papilloma and breast cancer. 1. Normal phenomenon: If a woman is in the growth and development period, due to the high level of estrogen in the body, it is easy to lead to hypersecretion of breasts, so the phenomenon of breast oozing will occur, but the secretion is usually a clear liquid, and there are no other abnormal symptoms. If a woman is breastfeeding, there will usually be milk oozing out as well. 2. Disease factors: (1) Mastitis: If a woman suffers from mastitis, she will usually have breast oozing as well. The fluid is usually thick, purulent and yellowish-white in color. (2) Intraductal papilloma: the exuded fluid is usually bloody and may also be coffee-like. (3) Breast cancer: If you have breast cancer, you will also usually have nipple discharge, which is usually bloody, and you may also have an abnormally hard lump in the breast. If there are other abnormal symptoms associated with female breast leakage, it is necessary to go to the regular hospital in time to get a clear diagnosis and actively follow the doctor’s instructions, so as to avoid delaying the condition and affecting the health of the body.