Browse drugs by prescription Female hormones
The most important hormones made by the ovaries are known as female sex hormones (sex steroids) and the two main ones are oestrogen and progesterone. The ovaries also produce some of the male hormone, testosterone. During puberty, oestrogen stimulates breast development and causes the vagina, uterus (womb) and Fallopian tubes (that carry eggs to the womb) to mature. It also plays a role in the growth spurt and alters the distribution of fat on a girl's body, typically resulting in more being deposited around the hips, buttocks and thighs. Testosterone helps to promote muscle and bone growth.