Microcalcifications in the breast have not a thing to do with how much milk you drink. They are very small specks of calcium that cannot be felt but can be seen on a mammogram. They do however mean either the presence of scar tissue OR early signs of breast cancer as well as a result of nursing or injury of the breast. They are formed by rapidly dividing cells.Sometimes microcalcifications can point to a suspicious area which contains cancer cells. This finding would require a biopsy and examination from a pathologist. The lower hemisphere of my breast was covered in this "calcification".