The Who, What, Where, When and Sometimes, Why.

Blood Androgen Levels

Androgens (such as testosterone) are natural hormones. They are important in sexual development in both men and women.

In women, small amounts of androgens are produced by the ovaries and the adrenal glands.

Higher levels of androgens in the blood may be linked to an increased risk of breast cancer in women [57-60].

Most studies on androgens and breast cancer risk have looked at the androgen testosterone.

Blood androgen levels and breast cancer after menopause

In postmenopausal women, studies show higher levels of blood testosterone increase the risk of breast cancer [57-59].

Blood androgen levels and breast cancer before menopause

A pooled analysis of data from 5 studies found higher levels of blood testosterone may modestly increase breast cancer risk before menopause [60]. 

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For a summary of research studies on blood androgen levels and breast cancer risk, visit the Breast Cancer Research Studies section.

 

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