Breast cancer is the most common cancer among Canadian women and its cause is still unknown. There are, however, risk factors to look out for and ways that you can decrease your risk of suffering from breast cancer. If you are diagnosed with breast cancer, there are many treatment options to discuss with your health care provider. See  Dr. Mary MacDonald’s monthly newsletter with a list of risk factors for breast cancer and tips on self examination – October Breast Cancer Toronto. Downtown Toronto Naturopathic Doctor