Breasts are milk producing glands or secreting organs

 There is a small amount of fat between the surface skin and underlying muscle - in this    fatty layer on the front of the chest the breast develops



 Each breast consists of 15-20 lobes or segments and the duct of each lobe opens    separately on the nipple.



 Normal breasts vary in size in different individuals and at different periods of life; the    chances of developing breast cancer is not related to breast size



 One in nine women will develop breast cancer in her lifetime, assuming she lives to age    80.


 The frequency of breast cancer increases with age, beginning to appear in the early     20's.


 Breast cancer is the second most common cause of death due to malignancy in    women. It was the leading cause until recently when lung cancer overtook it, the    increase in lung cancer being directly related to smoking.