Breast lumps are defined as any new and unusual sense that tissue in the breast is more solid or organized than it once was.

For a woman, it is disconcerting, even frightening, to find a lump in a breast. It is important to remember that the vast majority of breast lumps are noncancerous (benign). They usually are completely harmless and associated with a condition called fibrocystic breasts. This results from a woman's monthly hormone cycles during the childbearing years.

Diet also can affect...