Cont. Breast Self-Exam (BSE) Breasts come in all shapes and sizes just as women do. Breast self-exam is intended to help you learn what is normal for you. BSE is done once a month so that you become familiar with the usual appearance and feel of your own breasts. Familiarity makes it easier to notice any changes in your breasts from month to month. Early discovery of a change is the whole idea behind BSE. If you discover anything unusual, such as a lump, discharge from the nipple, or dimpling or puckering of the skin, you should see your doctor at once. Remember, eight out of 10 breast lumps are not cancer. The human breasts are paired subcutaneous organs composed of glandular breast tissue, fat, and fibrous tissue. As an endocrine target organ, breasts are sensitive to monthly hormonal changes. Before menstruation, estrogen and progesterone increase the size of the glandular tissue, the vascularity and the amount of water in the breast, making good breast examinations difficult. All of these changes regress after menstruation. The ideal time for a breast examination is two to three days after the end of your menstrual period, when the breast achieves its minimal volume, and true changes are easier to detect. A woman who no longer has periods may find it helpful to pick a particular day, such as the first of the month, to remind herself that it is time to do BSE. Breast Lumps Women frequently consult their doctors about suspected breast lumps. In women under 40, breast lumps are usually benign. Most lesions seen at this age are "fibroadenomas" (smooth, round masses with a clearly defined edge), "cysts" (round, mobile, often tender masses that may appear suddenly), or simply "prominent breast tissue" (common in younger women with a small amount of breast fat, which makes the glandular tissue easily palpable). Fibroadenomas occur twice as often in African-American women as in others. If a breast lump is detected on physical examination, a small needle may be inserted into the lump to determine if it is solid or cystic. If it is solid, removal under local anesthesia on an out-patient basis is all that is indicated. Removal is recommended because the mass will not disappear but will grow slowly, and confirming the lump is benign provides peace of mind to the patient. If aspiration with a needle reveals a greenish-bluish fluid, this most likely is a benign cyst. If the mass turns out to be cystic and completely disappears, careful follow-up, often including a mammogram (especially if the patient is over 40), is all that is indicated. These cysts may be multiple and may reappear in the future. Breast lumps in women over 50 always are considered potentially malignant until proven otherwise. Mammography Mammography allows physicians to detect small and early changes that may be suspicious. It can detect breast cancer up to two years before you or your doctor can feel a lump. Mammography is an X-ray of the breast from the top (craniocaudal view) and the side (lateral view). The amount of radiation from a mammogram is very small. Women under age 40 should discuss the role of screening mammography with their doctors, taking into account family history and other risk factors. Mammography in younger women is less accurate. It usually reveals only dense breast tissue that may mask an underlying tumor. Mammography is more accurate in women over 50 whose glandular breast tissue has become atrophic. As women age, glandular tissue disappears, becomes atrophic and is replaced by fat. It is recommended that women over age 40 request a mammogram every one to two years. Comparison between successive mammograms is necessary. If you have had a mammogram done elsewhere, it is helpful to bring it with you when a new one is ordered. If an abnormality is seen on the mammogram, you may require further evaluation and biopsy. Two-thirds of women do not follow recommended guidelines for mammography. It is estimated that cancer deaths would decline in women over age 50 by at least 35 percent if women got mammograms as recommended.