most helpful answer thanks for providing all the great background information! if several different doctors have told you the blemish is a cyst then that's probably accurate. a cyst is a pocket of tissue that's filled with some type of fluid. the type of fluid can vary depending on the type of cyst. some are filled with fatty acids while others contain pus. it sounds like your cyst is located within the skin layer not in the breast tissue which is good news. skin cysts are very common and do tend to drain occasionally as you've described. the fact the cyst has gotten bigger and changed color is a good reason to have a health care provider re-evaluate this. it's possible the cyst needs to be treated by having it drained or even removed. only your health care provider can say for sure. cysts are an annoyance but luckily they're not a serious disease. good luck to you as you cope with this!
how do you know if a lump on your breast that emits white liquid like a zit occasionaly is serious or not? . i've had it for about 6 years im 20 now in the same place with 3 different doctors looking at it all saying that it was nothing to worry about and just "normal". one doctor said it was a cyst caused from my bra and that i needed new bra's. it sometimes emited pus like a zit does usually in larger amount. though recently it has gotten slightly bigger and has a faint purpleish coloring to it like a bruise instead of my normal skin color like before should i go see a doctor again?