Introduction
Breast cancer is only one of 200 different types of cancer. It is considered a woman's disease but both men and women have the disease.
Every year, more than 200,000 women are diagnosed with breast cancer. Twelve percent of all women will get the disease and 3.5% of them will die. Breast cancer is the leading cause of death among women who are 40 to 55 years old.
Cancer occurs when cells divide uncontrollably. Cells keep dividing even though new cells are not needed. Change from normal to cancerous cells requires gene alterations. …