Cancer is a condition in which the changes that are called mutations take place in the genes, these mutations divide the cell and multiply within themselves. The cancers may develop in breasts as well, typically it happens either in ducts or in the lobules. The glands produce milk which come through the pathway called ducts.
Cancer may also occur in the fatty and fibrous connective tissues that are present inside the breasts. Here are some common visible signs that affirm the presence of breast cancer:
A lump or tissue thickening which feels different and has recently developed.
Swelling in all or part of your breast
A nipple discharge which is not breast milk
Nipple releases bloody discharge.
Peeling off, scaling, or flaking off of the skin on the nipple