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Doctor insights on: Oestrogen Progesterone

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I'm wondering why are the levels of oestrogen and progesterone low in the blood during menstruation?

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

Dr. Seth Derman
1,129 doctors shared insights

Progesterone (Definition)

Progesterone has been found to be helpful in preventing preterm birth in a patient who has a history of delivering babies too early. It can be given as vaginal suppositories. It is most often given as weekly ...Read more


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Are there any larcs that use progesterone and oestrogen, or all they all progesterone only?

Are there any larcs that use progesterone and oestrogen, or all they all progesterone only?

Not necessarily: There is a larc method that does not involve any hormones which is paragard iud. All others involve progetin hormone. ...Read more

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On day 3 my progesterone levels were 1.0 and oestrogen was 135. Is this normal?

On day 3 my progesterone levels were 1.0 and oestrogen was 135.  Is this normal?

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

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Is progesterone an estrogen?

Is progesterone an estrogen?

No: Progesterone is another ovarian hormone quite distinct from estrogen. One major effect of Progesterone is stabilization of an early pregnancy. ...Read more

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What are estrogen and progesterone?

What are estrogen and progesterone?

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

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What do estrogen and progesterone do in the body?

See below: In a very basic explanation estrogen causes cells to grow (example: breast/uterine tissue) and Progesterone helps the cells to mature properly. ...Read more

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How are estrogen & progesterone produced naturally?

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 more

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What is progesterone estrogen ratio in female's body?

Varies : The estrogen progeterone ratio is not something anyone would check. Levels change dramatically throughout the cycle so checking this number would not be clinically useful. ...Read more

Estrogen (Definition)

Estrogen is a hormone that is secreted by the ovaries and affects ovulation, ...Read more