A fine needle aspiration just obtains individual cells. Both can be useful. Most women should have their first mammogram at age 40. Some women, those with a strong family history, or those with a breast lump or other problem, may have their first mammogram earlier. Unfortunately going through menopause does not decrease your risk of breast cancer.
Breast cancer is most common in older women.
However, breast feeding does reduce your chances of breast cancer. Most women with fibrocystic breasts do not have a higher risk of breast cancer. This is uncommon and can only be determined by biopsy. Most women with breast cancer do not have a family history. However, we DO know that heredity plays a role.