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Doctor insights on: Tamoxifen Breast Cancer Put Uterine

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Does tamoxifen for breast cancer put me at risk for uterine cancer?

Does tamoxifen for breast cancer put me at risk for uterine cancer?

Yes. like ERT: The increase risk is similar to that of unopposed estrogen replacement therapy. It is important that all your doctors (esp your gyn in this case) are aware what medications you're taking and report any irregular vaginal bleeding/discharge or other pelvic symptoms. ...Read more

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Dr. Barry Rosen
1,337 doctors shared insights

Breast Cancer (Definition)

Breast cancer results when glandular cells lining the milk ducts and lobules of the human breast begin to grow in an unregulated manner. The growth occurs initially inside the ducts but eventually breaks outside into the breast tissue and ultimately spreads both to the lymph nodes in the armpit and via the bloodstream to other parts of the body. Because of the promoting affect of estrogen almost all breast cancer occurs in women and is a rarity in men. The unregulated growth is due to both inherited and acquired genetic defects. It is the most common malignancy in women but it 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


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Can the intake of tamoxifen for breast cancer affect our uterus ?

Can the intake of tamoxifen for breast cancer affect our uterus ?

Yes, it does: Yes! tamoxifen is a quirky drug! it binds to the estrogen receptor on cells, and in most places blocks the activity of estrogen. But in some places, including the uterus, tamoxifen turns on the receptor instead of turning it off. This causes the lining of the uterus to build up and get thick. This slightly increases the risk of uterine cancer, especially in older women. ...Read more

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Does taking tamoxifen for breast cancer treatment cause cancer of the uterus ?

Does taking tamoxifen for breast cancer treatment cause cancer of the uterus ?

Yes: Tamoxifen has been shown to increase the risk of uterine cancer, not unlike estrogen replacement therapy, with an incidence of ~1:500. However, this is almost-always caught at its earliest stage, with very high cure rates. If you compare the benefit of tamoxifen for either treating or preventing breast cancer compared to this risk, the benefit far outweighs the risk. ...Read more

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Can taking tamoxifen for breast cancer treatment induce cancer of the uterus ?

Can taking tamoxifen for breast cancer treatment induce cancer of the uterus ?

Maybe: There is a slight increased risk of endometrial cancer of 1 in 500 chance reported. The benefits of tamoxifen in treatment of breast cancer is much higher than the risk of endometrial cancer. Ask your oncologist and ob-gyn how best to follow or watch for this potential risk. ...Read more

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Does taking tamoxifen for breast cancer treatment induce development of cancer of the uterus?

Yes: The chance is about 1% and treatment is hysterectomy. With such a low chance then tamoxifen is worth the risk. A gynecologist needs to keep track of the patient and any unusual bleeding evaluated. There are also other hormone alternatives with less risk. Check with your medical oncologist to see which drug is best for a particular patient. ...Read more

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My mom 66 just diagnosed with breast cancer, metastasis to bones, stomach&lung t3n2m1. Put on tamoxifen for 2 mnths.Can she benefit from surgery?Whats her survival rate in years?How to extend her life?

My mom 66 just diagnosed with breast cancer, metastasis to bones, stomach&lung t3n2m1. Put on tamoxifen for 2 mnths.Can she benefit from surgery?Whats her survival rate in years?How to extend her life?

Need more than that: Yes if primary tumor is not removed , yes she will debunking will help , needs more than tamoxifen , speak to the oncologist for chemotherapy . Recent advances in chemotherapy changing the survival rate from 23% for better . Good luck. ...Read more

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What could replace tamoxiphen in second 5 years after breast cancer? Tamoxiphen caused me ovarian cyst and uterus thickening . Thanks

Letrozole: Tamoxifen for 5 years followed by Letrozole would be an option. However, technically you are still premenopausal so not an option. Another treatment which is controversial is to have your ovaries removes. There is data on 10 years of tamoxifen now but you may not want to do this. The other option would be observation. Hope this helps. ...Read more

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Does pr-negative breast cancer respond to tamoxifen?

Does pr-negative breast cancer respond to tamoxifen?

It depends.: Tamoxifen is used to treat hormone-sensitive breast cancer. This is determined by checking for estrogen receptors (er) and Progesterone receptors (pr) on the cancer. If the cancer is er+ and pr- (or vice-versa), it should respond to tamoxifen. However, if the cancer is er- and pr-, tamoxifen is not effective. ...Read more

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Are there any other alternatives to tamoxifen for breast cancer?

Are there any other alternatives to tamoxifen for breast cancer?

Additional info: Also let me add additional alternatives if pre-menopausal 1) bilateral oophorectomy (surgical or radiation) 2) chemical oophorectomy (goserelin or gnrh agonist). If this were chosen your oncologist might recommend aromatase inhibitor therapy, although this is a controversial topic. ...Read more

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Dr. Barry Rosen
4,223 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


Dr. Sean Canale
638 doctors shared insights

Tamoxifen (Definition)

This medication is used to: treat breast cancer that has spread to other parts of the body in men and women. Treat early breast cancer in women who have already been treated with surgery, radiation, and/or chemotherapy. Reduce the risk of developing a more serious type of breast cancer in women who have had ductal carcinoma in situ (dcis; a type of breast cancer ...Read more