Yes. About half of women in their 20s- 50s will have fibrocystic breast changes. It’s rare after menopause, but it can happen if you’re having hormone therapy.
This means hormones like estrogen might play a part since they affect breast tissue. But doctors aren’t exactly sure what causes these changes.
The condition used to be known as fibrocystic breast disease. But since it’s a normal part of life for many women and not really a disease, they're now called “changes.”