Even though most of us do not feel comfortable doing a breast self-exam (BSE), the more you examine your breasts the more you will learn about them and the easier it becomes for you to tell if something unusual has occurred. Not every cancer can be found by a BSE, but it is a critical step that you can, and should, take for yourself. It is best to make your BSE a monthly habit so that you become familiar with how your breasts normally look and feel. The best time to perform a BSE is after the end of your period since your breasts are then the least likely to be swollen. If you do not experience periods anymore, choose a day that is easy to remember, such as your birthday or your lucky number.
The Pink Ribbon self-examination pages provide more detailed guidance.