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During Treatment

Causes of Estrogen Loss

Estrogen is a hormone in the body. It is made mostly in the ovaries, glands, and other organs in the body like the:

  • Liver
  • Breasts
  • Prostate

It plays a role in:

  • Memory
  • Joint movement
  • Vaginal moisture
  • Improving mood
  • Managing body temperature
  • Keeping bones strong and healthy

Treatments that Affect Estrogen

You are taking an anti-hormone treatment because your cancer can grow from, and is sensitive to, estrogen. Anti-hormone treatments can block estrogen from being used by cancer cells. They can also affect how estrogen is made in your body.

There are 3 main types of treatment that affect estrogen levels in your body:

How to Manage Side Effects

Lifestyle Changes

Resources

Visit the J. Wesley Graham Patient & Family Resource Centre for more information about cancer and supports. You can also scan or click the links below to access more information:

About Herbs - Memorial Sloan Kettering

Calcium Calculator - Osteoporosis Canada

Complementary Therapies - BC Cancer Agency

Sexual Health - University Health Network

Natural Health Products and Breast Cancer - BC Cancer Agency

About This Resource 

Author: Waterloo Wellington Regional Cancer Program

Revised: December 2025

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Use this resource for your information only. It does not replace medical advice from your doctor or other healthcare professionals.

Email: [email protected]

Website: www.cancerwaterloowellington.ca