Dear Adrienne, A papilloma is a wart like growth that can occur in the lining of the duct of the breast. Papilloma's do not go away on their own. You say it is a possible papilloma, has it been fully evaluated to be sure of what this is?
Many women have some type of nipple discharge or fluid when their breasts are squeezed, and its normal. Squeezing the nipple sends message to the brain and the pituitary gland responds by increasing prolactin levels, which in turn produces discharge from the nipple. The discharge can come in a variety of colors
a papilloma would virtually never go away on its own. Change in color may reflect, if it is indeed a papilloma, that it's bleeding more or less at a given time; less bleeding would allow the blood to metabolize to some extent and become less red. The only way to diagnose a papilloma is by removing it and seeing what it is under the microscope. A presumptive diagnosis of bloody discharge is not good enough; it's best to know for sure, even though the odds are great that it's something innocent like a papilloma