Glands in the areola produce fluid to lubricate the nipple during breast-feeding. Your breasts may not be exactly the same size or shape, for example one may be larger than the other this is quite normal. Breast size is affected by changing levels of hormones during your menstrual cycle or during pregnancy. You may have noticed your breasts are tender or feel lumpy just before a period - this is also normal. Your breasts change with age due to a drop in hormone levels.
Nipples usually point forward.
However, they may look different on each breast. These differences aren't unusual. The breasts are supported by ligaments and large muscles attached to the chest wall. These form part of the lymphatic system which helps the body to fight infection. In our society breasts are often regarded as symbols of beauty and femininity, part of a woman's sexuality and role as a mother.