Breast Cancer is the most common cancer in women. One in nine women will develop breast cancer. The prognosis of breast cancer depends on the type of breast cancer, and the breast cancer stage. Early stage carcinoma in situ or intraductal carcinoma the survival is greater than 90%. For invasive carcinoma, the prognosis depends on the size and if there is lymph node involvement. Gene micro array also affects breast cancer prognosis, presence of BRCA gene mutation, the BRCA1 and BRCA2 gene.