The precise causes of breast cancer are unclear, but we know the main risk factors. Still, most women considered at high risk for breast cancer do not get it, while many with no known risk factors.
Sep 26, 2017 · Breast cancer cells, like all cancers, initially develop because of defects in the genetic material deoxyribonucleic acid (DNA) of a single cell.The human body is composed of trillions of cells. Inside the inner core (nucleus) of each cell is our DNA, located on chromosomes. Every human cell has two sets of 23 chromosomes. Each set is inherited from one parent.
But no one knows the exact causes of breast cancer. Doctors seldom know why one woman develops breast cancer and another doesn’t, and most women who have breast cancer will never be able to pinpoint an exact cause. What we do know is that breast cancer is .
DES is now known to be an endocrine-disrupting chemical, one of a number of substances that interfere with the endocrine system to cause cancer, birth defects, and other developmental abnormalities. The effects of endocrine-disrupting chemicals are most severe when exposure occurs during fetal .