A woman’s reproductive life can impact her risk of getting breast cancer.
There is a slight increase in the risk of breast cancer if you started your first menstrual period earlier than the average woman, which is before the age of 12 or if she starts menopause later than the average woman, which is over 55.
The average age of menopause for women is 51.5 years.
Starting your menstrual cycle early and/or going into menopause late exposes estrogen and other reproductive hormones to a woman’s body for a longer period of time.
Estrogen exposure for a long time can affect breast tissue in a negative way. This in turn can play a role in the development of breast cancer.