Diagnosis of breast cancer at the earlier stage increases the chances of successful treatment. All females should start self exam at the age of 20. First, lie down on your back and put your right hand behind your head. Use three middle fingers from left hand to feel the lumps at right breast. Move around your breast in circular movement from outer edge to nipple area. Repeat for left breast. Do the self exam at the same time every month either a few days after period or first day of starting new pack of oral contraceptive pills.