text: there is a technique of self examining your breast for any mass ...mass  feeling is the best sign for a breast cancer ..however i must tell you that a mass might not be a cancer but ratherly a benign lesion...( some doctors advice their patients to remove it so it might not change into malignancy ) ..there is other signs concerning the mass & doctors take it into consideration when they are physically examining their patients such as ..the size of the mass .. is it adherant to overlying tissues ..is adherent to the skin .. how does the skin over the mass looks like .. they also look for the nipple & ask if any changes occured to it such as inverting inside the breast tissue\n\neven if not totally true but if the mass is small its better & its more likely to be benign \nif the mass is adherent to the breast tissues or to skin over it its more likely to be malignant \nif the skin over the mass has changed in colour & became grey to orange in colour its more likely the mass is cancerous \nif the nipple was inverted inside ( a new change & not born with this feature ) then its more likely that its a breast cancer \nsome of these signs are more dangerous than others such the changes in the skin & nipple because they indicate a high grade cancer lesion \nif you have felt a mass under your fingers when self examinning urself its better to go to a doctor as soon as possible because if it a cancer breast & still a low grade you can remove it before the cancer metastasize into other tissues & organs