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I had breast cancer, and received Lupron injections and took tomaxifen, and anestrazole for 5 years. I stopped my treatment last year, in April, but my menstrual cycle returned, despite all of the hormone suppression treatments. Also, I'm 53, with only one ovary, so.......I'm very concerned about this. I hope someone can share some insight. Thank you!
~Pattie

February 11, 2025
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A MyBCTeam Member

Thank you so much! ❤️🤗

February 12, 2025
A MyBCTeam Member

Thank you.

February 12, 2025
A MyBCTeam Member

I recommend seeing a gynecologist since one of the side effects of tamoxifen can be uterine cancer.

February 12, 2025
MyBCTeam

Pattie, it's understandable to feel concerned about the return of your menstrual cycle after such extensive hormone suppression treatments. While treatments like Lupron, tamoxifen, and anastrozole are designed to suppress hormones and induce menopause-like effects, the return of your cycle could indicate that your remaining Show Full Answer

Pattie, it's understandable to feel concerned about the return of your menstrual cycle after such extensive hormone suppression treatments. While treatments like Lupron, tamoxifen, and anastrozole are designed to suppress hormones and induce menopause-like effects, the return of your cycle could indicate that your remaining ovary has resumed some hormone production. This can occasionally happen, even after years of treatment, especially if menopause was induced temporarily by medication rather than naturally.

At 53, it's also possible that your body is transitioning through perimenopause or menopause, which can cause irregular or unexpected bleeding. However, given your history of breast cancer and the treatments you've undergone, it's crucial to consult your doctor as soon as possible. They can evaluate whether this is a normal hormonal fluctuation or if further investigation is needed to rule out other causes.

Your health team may recommend blood tests to check hormone levels, imaging to assess your ovary, or other diagnostic steps to ensure everything is as it should be. Don't hesitate to reach out to your care team—they're there to support you.

February 11, 2025

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