If you're:

Between the ages of 20 - 34

Do a monthly breast self examination
Schedule a breast examination by a physician or trained health professional at least every 3 years

Between the ages of 35 - 39

Do a monthly breast self examination
Schedule an annual breast examination by a physician or trained health professional
Get a baseline screening mammogram

Age 40 or older

Do a monthly breast self examination
Schedule an annual breast examination by a physician or trained health professional
Get an annual screening mammogram