Breast Cancer Facts

Breast cancer is the most common malignancy among women and it is, by far, the second-most common cause of mortality in the United States. As to these information mentioned, it is best to know some breast cancer facts.

  • Family History. This is one of the major risk factors in developing breast cancer. Breast cancer has a high familial tendency; hence if any first degree relatives have been diagnosed in the family be it a mother, sister or daughter, the risk of having breast cancer is twice to ninth times. The genes that are responsible for the inheritance of breast cancer are BRCA1 and BRCA2 genes. BRCA1 genes, most often than not, tend to cause breast cancer at a younger age.
  • Menstrual History. Females, who had their menarche, or the first menstrual period, earlier than age 11 years old are at risk of developing breast cancer. Even those women who menopause later than 55 years old are also at risk.
  • Pregnancy. Women who delivered live birth earlier than age 20 are of lower risk than women who hasn’t pregnant (nulliparous) or those who just delivered first live birth at age 35 and older.
  • Endocrine. Obesity at the age earlier than 40 years old causes anovulatory cycles which are precursors in developing breast cancer.
  • Medical and Environmental. Women who underwent hormone replacement therapy (HRT) for a longer duration are at risk for breast cancer. Exposure radiation can also be a factor in developing breast cancer.
  • Breastfeeding. Breastfeeding mothers, especially for a longer duration, reduce the risk of developing breast cancer.
  • Smoking. Up to this time, there are no clear associations between smoking and breast cancer.
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