The mature female reproductive organs and secondary sexual characteristics and maintain their normal function of a class of hormones. Mainly secreted by the ovaries. Is a steroid compound, there are two types of estrogen and progesterone. Mainly by the estrogen produced follicle and corpus luteum, the main role is to stimulate the adolescent female external genitalia, vagina, fallopian tubes and uterus development and growth, stimulate the emergence of female secondary sexual characteristics, can affect the metabolism of adolescent development and growth play a catalytic role . Can be used in clinical treatment of uterine hypoplasia, estrogen treatment caused by lack of functional uterine bleeding and other diseases.
Progesterone
Mainly by the corpus luteum progesterone production, is also known as progesterone. Progesterone to estrogen is usually based on in order to play its role as a fertilized egg in the uterus to prepare for planting and to ensure that pregnancy, such as the endometrium from the secretory phase into the growth period to convey to facilitate embryo implantation Qi, the uterus and can not easily excited, to ensure that embryos have a more "quiet" environment. The role of estrogen on the basis of progesterone to promote breast development and lactation after pregnancy to prepare for the conditions. Progesterone also heat production, basal body temperature can rise after ovulation is about 1 degree. As the temperature in the lower short-term performance before ovulation, ovulation and then increased, it will be the basis of clinical changes in body temperature to determine ovulation date as one of the signs; progesterone can inhibit ovulation, progesterone used in clinical treatment of threatened abortion and habitual abortion. Use a certain amount of estrogen and progesterone can cause artificial menstrual cycle, for the treatment of secondary amenorrhea. Changes in estrogen and progesterone ratio, can affect the menstrual cycle, ovaries, uterus, vagina and other organs of the changes, which interfere with fertility.
