Five months pregnant nipple outflow of transparent liquid, if not accompanied by breast pain, swelling, is generally a normal physiological phenomenon, a few cases may also be endocrine abnormalities, breast duct disease and other factors caused by the specific causes and treatment methods are as follows: 1, the normal physiological phenomenon: women during pregnancy breast will again proliferate and develop, ready for future breastfeeding. At the same time, the breast ducts will also show hyperplasia and diastolic state, so the nipples can secrete white or transparent liquid. This is not a special treatment, usually do a good job of cleaning around the nipples, keep a happy mood, do not stress too much; 2, endocrine abnormalities: a variety of factors can lead to endocrine abnormalities, causing an increase in serum lactogen, such as hypothalamic disorders, pituitary disorders, neurological stimulation, etc., which may lead to the nipple outflow of clear liquid. This is the time to actively seek medical attention to treat the cause; 3, breast duct disease: if the nipple outflow of transparent liquid more, or accompanied by breast swelling, pain and discomfort symptoms, it may be the occurrence of intraductal papilloma, breast ductitis, cystic hyperplasia of the breast and other diseases, most of which are caused by retrograde bacterial infection of the breast duct through the nipple. In this case, you should seek medical attention promptly, you can do breast ductoscopy, after confirming the diagnosis, follow the doctor’s instructions to take oral antibiotics for treatment, such as penicillin, cephalosporin, etc., or take breast duct irrigation treatment, can get relief.