This is one of those questions where you're probably asking the wrong people, cos nobody here can examine you!

Well, what is it that is making you concerned? What age are you? Has one breast always been bigger, or only recently, and how significant is the size difference? Ie, only slighly, a full cup size?

I am 20 years old and this has happened in the spand of 2 weeks...They both feel full (if thats the right word) but the one on the right is one cup bigger and a little harded feeling...They are also a little tender to the touch, the is just a bit more tender... Thank you agian for your help!^,^

Have the doctor taught you how to do a self-exam.. And try those and usually female don't have the same size cup on one breast to another. My breast is different because my breast is one size bigger to another and im sure other women have that problem too. It isn't a problem.. And you said your af is near so im sure they would be sore before the af is there. So if you are concern about breast cancer do self exam and try getting some health insurance and get things check out with the doctor.. Other than that if you need doctor issues talk to your parent about them.

I will ask my mom the next time I see her...I dont get to see her often cause we dont live all to close anymore...But thank you! I feel better...They never have had this size difference...Or not enough for me to notice anyway! ^,^