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Doctor insights on: How Does Estrogen Work To Prevent Fertilization In Contraceptive Pills

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How does estrogen work to prevent fertilization in contraceptive pills?

How does estrogen work to prevent fertilization in contraceptive pills?

Prevents Egg Growth: Great question. Estrogen inhibits a hormone called FSH which usually helps grow an egg. But the Progesterone part of birth control prevents ovulation and makes the inside of the uterus thinner to prevent pregnancy. ...Read more

Dr. Peter Ihle
1 doctor shared a insight

Birth Control Pills (Definition)

Also known as oral contraceptives, birth control pills are highly effective oral medications that use hormones to prevent pregnancy. There are two main types of birth control pills: one with estrogen and progestin (also known as the combination pill) and one with just progestin. The two main ways they prevent pregnancy are: 1) The hormones thicken the cervical mucous, which keeps sperm from entering the uterus on their way to the egg; and 2) By maintaining a level of hormone in the blood stream that prevents the ...Read more


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Explain how is estrogen used in contraceptive pills to control infertility in human beings?

Explain how is estrogen used in contraceptive pills to control infertility in human beings?

Prevent bleeding: Most oral contraceptives are a combination of estrogen, and progesterone. The Progesterone does most of the heavy lifting when it comes to the contraceptive effect. The estrogen is added to eliminate side effects, most commonly irregular vaginal bleeding. ...Read more

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What contraceptive pills are high in estrogen and what pills are low in estrogen as i'm looking for a low dose due to side effects please?

What contraceptive pills are high in estrogen and what pills are low in estrogen as i'm looking for a low dose due to side effects please?

Check labels: Most available on the market. Just tell your prescribing doctor you would prefer to the lowest available dose. The lowest dose brand is called lo lo estrin. ...Read more

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Do the birth-control pills prevent fertilization or they just prevent the fertilized egg to attach to the uterus?

Do the birth-control pills prevent fertilization or they just prevent the fertilized egg to attach to the uterus?

Multi - ways: Birth control pills work in many ways depending on the type (ie Progesterone only or combination pills). The main function is to stop ovulation from occurring. If no egg is released then there is no egg to fertilize. If this fails and an egg is made and released - the secondary defense is thinning the lining to prevent embryos from implanting. They also effect cervical mucus. ...Read more

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What's the benefit of taking low estrogen birth control pills?

What's the benefit of taking low estrogen birth control pills?

Less side effect: Some drs. Believe that despite "low estrogen" dosis is suppose to reduce the risk of side effects but also augments the number of ovulations. All birth control pills, patches, rings, injections produce the changes of a pregnancy in a woman but the majority of the time without a baby & still c a minimal chance of conceiving but aborting when the fetus can not get attached to the uterine lining. ...Read more

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Are there any benefits to taking low estrogen birth control pills as suppose to regular ones?

Are there any benefits to taking low estrogen birth control pills as suppose to regular ones?

Side effects: The higher the estrogen the higher the riskd of blood clots, migranes, varicose veins, and breast pains. ...Read more

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Are girls who are on birth control pills more attractive due to increasing levels of estrogen?

Are girls who are on birth control pills more attractive due to increasing levels of estrogen?

All girls are pretty: As a general rule, all girls are attractive, talented, wonderful, etc..., especially if if one is trying to instill self-confidence and good self-image in young girls as they grow up. However, some birth control pills (ocp's) do get rid of acne. Some ocp's can add a few pounds, making a very slim woman look more nutritionally sound. Women on ocp's don't fear pregnancy, so may behave differently. ...Read more

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Is there estrogen or progestin in birth control pills?

Both: The majority of birth control pills have both estrogen and Progesterone in them. There are a few that contain just progesterone. Progesterone only birth control pills are less commonly used except in special circumstances, such as while breast-feeding, or in women who can't take estrogen. ...Read more

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Do estrogen-containing birth control pills enlarge breasts?

Possibly: Depends on how much estrogen, the higher the estrogen the more chance it can enlarge the breats but it can also cause other non desirable effects , you should not be taking bc pills to enlatrge the breast, and at your age the lower the estrogen dose the safer, the lowest combo pill is loloestrin , only 10 mcg estrogen- safer for women in their 40s less chance blood clot , ht attack, stroke. ...Read more

Dr. Barbara Lavi
4 doctors shared insights

Birth Control (Definition)

Also known as contraception, birth control is a method to prevent pregnancy. Some methods of birth control include a vasectomy, tubal ligation, oral contraceptive pills, vaginal rings, hormone injections, condoms, diaphragms, sponges, ...Read more


Estrogen (Definition)

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