I recommend that women do monthly self exams as a means to become familiar with their breasts and potentially find a breast abnormality.  This simple exam is potentially lifesaving.  It is easily done prior to a shower or lying down.

Essentially, there are 2 parts to a breast self exam.  These 2 steps are looking and feeling.

First, you will observe each breast individually with hands on the hips.  You will be looking for evidence of puckering of the skin, nipple inversion or retraction, change in the skin color, and nipple discharge.

Then, while lying on your back begin feeling the breast with a flat hand and fingertips.   It is best to use multiple patterns to ensure the entire breast it palpated.  Start in a spiral pattern, then in a vertical pattern and finally in a horizontal pattern.  Squeeze the nipple looking for discharge.  Remember to examine the upper chest area and armpit area since these areas also contain breast tissue.

If there are any areas in question or of abnormality noted then consult your primary care physician for a breast exam and possible mammogram.