The normal breast is hemispherical, erect, and symmetrically positioned, one on each side. The apex is the nipple, which is surrounded by the areola. The normal breast is located between the second and sixth ribs, and the nipple is usually located in the fourth rib. The position of the nipple may vary slightly depending on the size and shape of the breast. Generally, the breasts are hemispherical or slightly pendulous conical in shape, with a firm, soft, smooth and intact surface. The apex of the breast is the nipple. The nipple protrudes outward and is surrounded by a rounded areola. The color of the nipple and areola can vary from pink to tan depending on age and hormone secretion.