Did You Know . . . Being a Woman

Posted on Oct 6, 2021 in On the Porch with Patti

Just being a woman is the biggest risk factor for developing breast cancer. There are about 266,120 new cases of invasive breast cancer and 63,960 cases of non-invasive breast cancer this year in American women. While men do develop breast cancer, less than 1% of all new breast cancer cases happen in men. Approximately 2,550 cases of breast cancer will be diagnosed in American men this year.

The biggest reasons for the difference in breast cancer rates between men and women are:

Women’s breast development takes three to four years and is usually complete by age 14. It’s uncommon for men’s breasts to fully form – most of the male breasts you see are fat, not formed glands.
Once fully formed, breast cells are very immature and highly active until a woman’s first full-term pregnancy. While they are immature, a woman’s breast cells are very responsive to estrogen and other hormones, including hormone disrupters in the environment.
Men’s breast cells are inactive, and most men have extremely low levels of estrogen. So hormonal stimulation of highly responsive and vulnerable breast cells in women, particularly during the extra-sensitive period of breast development, is why breast cancer is much more common in women than in men.

Source: BreastCancer.org