Can Menstrual Cycle Cause Lumps In Breast?

Can Menstrual Cycle Cause Lumps In Breast? Changes in hormones during your menstrual cycles can create changes in your breasts. These are known as fibrocystic breast changes. You could get lumps in both breasts that increase in size and tenderness just before your period. How does the menstrual cycle affect breast lumps? Hormone changes during