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Doctor insights on: Estrogen Progesterone Make Breast Cancer

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Tamoxifen is given to breast cancer patients to suppress estrogen or both estrogen & progesterone?

Tamoxifen is given to breast cancer patients to suppress estrogen or both estrogen & progesterone?

Estrogen: Tamoxifen is given to individuals with specific breast cancers that are driven to grow by the presence of estrogen receptors. Tamoxifen interferes with the activity of estrogen in the breast, preventing cancer growth. The role of Progesterone receptors is unclear, though Progesterone receptors in breast cancer are generally associated with estrogen receptors, making tamoxifen an effective therapy. ...Read more

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Dr. Barry Rosen
4,344 doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more


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Does natural progesterone prevent breast cancer?

Does natural progesterone prevent breast cancer?

No: There is no evidence Progesterone of any type prevents breast cancer, "natural" Progesterone or not. If a woman has menses that only occur a few times a year, six or four or fewer, however, Progesterone or progesterone-like compounds can very definitely prevent endometrial hyperplasia (which can lead to uterine cancer), and should be used regularly to oppose continuous estrogen stimulation. ...Read more

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Will estrogen dominance always cause uterine cancer?

Will estrogen dominance always cause uterine cancer?

Estrogen/Uterine CA: Absolutely not. "high" estrogen levels are only one factor in the risk profile for uterine cancer, which also includes obesity, family history, and oral contraceptive history. Even if you possess one or more risk factors, that does not mean that a tumor is certain. Close monitoring and counselling by your gyn is the best course of action. ...Read more

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Do the breast enhancement pills "breast actives" cause breast cancer or uterus cancer?

Do the breast enhancement pills "breast actives" cause breast cancer or uterus cancer?

Unknown: Breast enhancement pills are not regulated and therefore may have various unknown substances in them. Some of those substances, especially if they include estrogen, may increase risk of cancers. ...Read more

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What is estrogen receptor positive breast cancer?

What is estrogen receptor positive breast cancer?

One with receptors.: These are tumors with estrogen receptors on them. This makes them susceptable to some chemotherapeutic agents, like tamoxifen. ...Read more

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Does progesterone or conjugated estrogen enhance breasts?

Does progesterone or conjugated estrogen enhance breasts?

Maybe: Estrogens can quite possibly, but individual results would vary widely. That also isn't a usual medical reason for using those drugs. ...Read more

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Does postmenopausal hormone therapy lead to breast cancer?

Does postmenopausal hormone therapy lead to breast cancer?

Very low Risk: With due respect. The landmark study, whi, is called into question in so many ways. The nih spent millions to answer very little. As an re, i feel there are many facets to HRT and a careful and comprehensive evaluation of the literature supports a very minimal at best increase in breast cancer and the evidence points to the progestin component only (provera). Consultation warranted. ...Read more

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Does estradi case breast cancer?

Does estradi case breast cancer?

Possibly: Estrogen receptor type of cancer incidence fell after scientific studies linking estrogen use with increased risk of breast cancer caused many women to discontinue their use, but other studies gave less convincing conclusions. ...Read more

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Could premerin homone replacement cause Paget breast cancer?

Could premerin homone replacement cause Paget breast cancer?

Unlikely: We think that combined hormone replacement including estrogen and Progesterone cause an increase in breast cancer of which paget's disease if the breast is a type. Premarin (conjugated estrogens) only contains estrogen. ...Read more

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Does progesterone increase breast size?

Maybe: There are those that think so. The late john lee, who extensively studies progesterone, believed Progesterone placed topically would enhance breast tissue. ...Read more

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Can estrogen dominance always cause uterine cancer?

Can estrogen dominance always cause uterine cancer?

No, a risk factor: Unopposed estrogen is a risk factor for uterine cancer but it does not always cause it. Unopposed estrogen means it is given without any Progesterone another female hormone. Somewhere between 4-8 out of every 1000 women receiving unopposed estrogen per year will get uterine cancer. Being obese probably makes the risk closer to 8/1000, whereas in thin women the risk is about 4/1000. ...Read more

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Will taking estrogen hormones make your breasts larger?

Will taking estrogen hormones make your breasts larger?

Well: Some oral contraceptives can be associated with increase in breast size in some women (sometimes). ...Read more

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Hormone replacement therapy. Estrogen alone increases risk of uterine cancer. Adding progesterone increases risk of breast cancer, but reduces risk of uterine cancer. What's the right balance?

Hormone replacement therapy. Estrogen alone increases risk of uterine cancer. Adding progesterone increases risk of breast cancer, but reduces risk of uterine cancer. What's the right balance?

Individual: Yes, estrogen alone does increase the risk of uterine cancer over time. And yes the whi showed that the combination of a certain synthetic estrogen and a certain synthetic progestin increased the risk of breast cancer. But most specialists do not use those older types of synthetic hormones and with newer medications the risks are lower and different. So a balance can be achieved. ...Read more

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Do high estrogen levels cause breast cancer in men?

Do high estrogen levels cause breast cancer in men?

IT'S A RISK FACTOR: Prolonged exposure to estrogen is a risk factor for breast cancer in men. Obesity, liver cirrhosis and high alcohol intake can lead to a high estrogen state. ...Read more

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How do breast cancer anti estrogen pills work?

How do breast cancer anti estrogen pills work?

Starve tumor: Many tumors are fed by estrogen - the main female horomone. Anti-estrogen pills block the effects of estrogen (in a variety of different ways) and thereby starve the tumor from a vital growth factor. Even if you are postmenopausal (or even male) your body still produces estrogen in places like the adrenals and subcutaneous fat. ...Read more

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Does taking tamoxifen for breast cancer treatment induce cancer of the womb?

Does taking tamoxifen for breast cancer treatment induce cancer of the womb?

Small risk: Tamoxifen is asociated with a small (less than 5%) risk of uterine cancers, women on tamoxifen require regular gynecologic checkups every 6-12 months and high-risk women may need ultrasound screeenings too. ...Read more

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Evista (raloxifene) estrogen receptor for uterine cancer?

Unclear Question?: These are somewhat unrelated questions which makes it difficult for me to address your question. Evista (raloxifene) is not used for treating cancer...It is sued for treatment/prevention of osteoporosis. Estrogen receptors are specialised protein receptors found in breast cancer.Uterine cancer has little bearing on either of the two references you have listed. ...Read more

Dr. Barry Rosen
1,379 doctors shared insights

Breast Cancer (Definition)

Occurs when glandular cells lining the milk ducts and lobules of the human breast begin to grow in an unregulated manner. Often curable if found early and treated effectively with surgery, hormonal therapy, chemotherapy and targeted therapy, or a combination thereof. Early detection before the malignancy becomes large enough to be felt depends on mammography/sonography and MRI imaging of the breast ...Read more


Dr. Mark Hoepfner
1,062 doctors shared insights

Breast Carcinoma (Definition)

Most breast cancers are carcinomas. This is a type of breast cancer. These cancers start in the cells that line organs and tissues. In fact, breast cancers are often a type of carcinoma called adenocarcinoma, which starts in cells that make glands (glandular tissue). Breast adenocarcinomas start in the ducts (the milk ducts) or ...Read more