TYPES OF BREASTS Women body has two type of sex organ – Primary sex organs – pair of ovaries, uterus, fallopian tubes, cervix and vagina, labia minora, labia majora and clitoris. Secondary sex organs – Breasts are considered as Secondary sex organs because breasts are not organs of reproduction. Their role is to increase sexual desire and nurturing an infant after birth. How breast size changes? When girls reaches puberty , the first visible sign of breast growth start to show. At this time the ovaries start to produce and release the hormone called estrogen , fat in the connective tissue starts to build up. This causes the breast to enlarge . The duct system also starts to grow and often underarm hair and hair on vaginal area appear. At the time of ovulation and menstruation start, the breasts begin to mature and glands form at the end of milk ducts. The breast and duct system continue to grow and mature with the development of many gla...