Some of the factors that increase the risk of breast cancer are:
1. Growing older: As you age, your risk of developing breast cancer rises. Breast cancer is typically discovered after age 50.
2. Genetic alterations: Women who inherit modifications (mutations) to specific genes, such as BRCA1 and BRCA2, are more likely to develop breast and ovarian cancer.
3. Reproductive history: Women are exposed to hormones for a longer period of time when menstruation begins before age 12 and menopause begins beyond age 55, increasing their risk of breast cancer.
4. Having dense breasts: Breasts with more connective than fatty tissue may make cancers more difficult to see on a mammogram. Breast cancer is more likely to strike women with thick breast tissue.
5. Radiation therapy before: Women who received radiation therapy to the chest or breasts before age 30 (for instance, to treat Hodgkin's lymphoma) have a greater risk of developing breast cancer later in life.
6. Diethylstilbestrol (DES) exposure: Between 1940 and 1971, DES was prescribed to some pregnant American women in an effort to reduce miscarriage. Breast cancer is more likely to strike women who used DES or whose mothers did so while carrying them.
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