if its bruised it may feel different. its normal to have cyclic breast pain associated with periods. if its only been 3 days it could still be a bruise, if it had been a few weeks it clearly wouldnt be a normal bruise. also pain isnt usually a symptom of b cancer either. but im not a doc yet, so if ur worried sure get it checkedout its up to u.
It has been there for about 3 days. And my breast has been sore for about 4. Sometimes my right breast gets sore in the same area before my period but it is not time for my period. It is a little harder on that side of my breast than on the left side??
you may have injured yourself without realising. how longs it been there? i would wait to see if it goes. bruising isnt really a sign of breast cancer.