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I'm wondering why are the levels of oestrogen and progesterone low in the blood during menstruation?
Wow nice question: Long explanation but a brief version. Your menses is an indication that pregnancy did not occur and that your body is now eliminating the lining of your uterus and preparing for a new cycle. It is the decline in estrogen and Progesterone that tells your uterus it is time to shed the lining. The brain starts to stimulate the ovaries in a renewed attempt at getting you pregnant. See image. ...Read more
Out of fsh, lh, oestrogen and progesterone, what fertility drug most likely to cause cancer in the women?
Hard to say: One would expect low numbers of Progesterone and Estrogen early in the menstrual cycle because that is how the menstrual cycle works. Normally we do not check these particular hormones at this time for this reason. Clarify with the doctor doing the test what it was they were trying to find out. Lh/FSH are better hormones to test if dealing with irregular periods. day 21 Progesterone for ovulation ...Read more
Hormones.: Estrogen and Progesterone are hormones produced by the ovary in response to the brain (pituitary gland). Estrogen is produced early in a womans cycle and Progesterone in the second half of the menstrual cycle. The are responsible for preparing the uterus for pregnancy and for pregnancy maintenance. They are also responsible for making women, women. ...Read more
By the follicle: An amazing dance of hormones coordinates the reproductive system. One of the thousands of egg sacs that are in the ovary matures each month during the reproductive years. During the first two weeks of the menstrual cycle, the follicle releases estradiol, a potent estrogen. After releasing its egg, the follicle becomes a corpus luteum and makes Progesterone instead. ...Read moreSee 1 more doctor answer