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About The Center

Stony Brook University Breast Care Center
Carol M. Baldwin
Breast Care Center
3 Edmund D. Pellegrino Road
Stony Brook, NY 11794
Carol M. Baldwin Breast Care Center Phone 631-638-1000
Carol M. Baldwin Breast Care Center Fax 631-444-6348
Carol M. Baldwin Breast Care Center Map & Directions Map & Directions
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Patient Information

Breast Self Exam

Breast self-examination (BSE) is a life-saving habit. It is the best defense we have against breast cancer and breast cancer is second only to lung cancer as the leading cancer killer of women.


  • Early treatment saves lives.
  • Mammograms often find breast cancer very early. This means:
    • a much better chance of cure
    • more ways to treat the cancer
  • Mammography uses very low radiation. Radiation carries a small risk of causing cancer. Still mammography is now safer than ever!

Breast Self Exam - Why?

Tumor Diameter of Patients Practicing BSE Why examine your own breasts? Because breast self-examination (BSE) is a life-saving habit. It is the best defense we have against breast cancer - and breast cancer is second only to lung cancer as the leading cancer killer of women. The American Cancer Society "Facts and Figures - 1996" now shows one out of every nine women in the U.S. will develop breast cancer. The National Cancer Institute estimates one in eight American women will be diagnosed with breast cancer by age 85.

The incidence of breast cancer in women grew from the early 1970's to 1987, by a rate of 4 percent a year. Since 1987, the American Cancer Society reports the incidence has leveled off at about 110 cases if breast cancer per 100,000 women (barely over one tenth of one percent (0.1%) increase. Early detection and prompt treatment have increased the survival rate. The 5 year survival rate for localized breast cancer has risen from 78% in the 1940's to 96% in 1996. If the breast cancer has not spread to other areas, the survival rate approaches 100%. BSE is a key to early detection.

This booklet will help you to learn HOW and WHEN to perform BSE properly, and WHAT to look for. Following are some of the reasons WHY you should make BSE a regular, monthly habit:

  • BSE is for women of all ages. Some doctors recommend you begin practicing BSE as soon as your breasts start developing. This will help you become familiar with your normal breast structure and learn to notice any unusual changes. The American Cancer Society, in its 1996 directive, recommends monthly BSE for women age 20 and older. As an adult woman, you should continue BSE throughout your life including during pregnancy and after menopause. NOW is the right time to begin practicing BSE.
  • BSE is reassuring. Once you have learned how your breasts feel normally, each month's re-examination may confirm you have not found any changes to report. And if any unusual changes do occur, monthly BSE will alert you to them at the earliest stage, so that you can seek immediate advice from your doctor. The encouraging fact is that not all changes in your breasts mean disease, and not all breast diseases are cancer; 80 percent of all breast lumps are benign (non-cancerous). Of those lumps that do prove to be malignant (cancerous), 95 percent are found by women performing BSE.
  • BSE is easy and convenient. Examining your breast takes only 10 to 15 minutes each month, costs nothing, can be done in private, and can save your life.
  • BSE can be life saving. Although cases are rare under ago 35 and most common over age 50, EVERY woman is at risk from breast cancer; breast cancer cannot be prevented, only treated - and cured, if treated soon enough. Research shows that the tumors found by women practicing BSE are half the size of those discovered by doctors in non-BSE practicing women. And the smaller a breast cancer tumor when discovered, the greater chance of effective treatment and cure. If all women would do BSE, see their doctors for regular cancer checkups, and have mammograms as recommended, 95 percent of all breast cancers could be halted before they become fatal.

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Breast Self Exam - Procedure

In the event of ANY unusual findings in your BSE, do not procrastinate; see your doctor IMMEDIATELY for a definite diagnosis. Above all, do not abandon you BSE after several "normal" inspections. BSE cannot protect you if you don't use it.

Lying In Bed


Breast Self Exam Preparation Self-Examination Diagram Begin while lying in bed. Place a pillow or folded town under your left shoulder and your left hand behind your head. Your shoulder should be raised high enough for your left breast to be center on top of your chest, falling neither to the center nor toward the armpit; this arrangement distributes the breast tissue as evenly as possible across the chest wall. If a breast is not properly flattened against the chest, it is difficult to feel a lump - particularly in the outer upper quadrant, where tissue is thickest (and where most malignancies occur).


Breast Self Exam Technique Palpation, a careful and systematic feeling of your breasts, will give you a "touch picture" of their normal structure and condition. Also use your right hand to examine your left breast, and vice-versa. Use two or three fingers, keeping the thumb extended, and always feel with the sensitive "palmar pads" on the flat, inner surfaces of your fingers. Do not use fingertips as they are less sensitive, and long fingernails will impede you examination. Never compress your breast between thumb and fingers as this may cause you to feel a "lump" that doesn't exist.

Be thorough. Examine the entire are, including the lymph nodes, from your collarbone to just below your breasts, and from armpits to breastbone.

Method Information

Breast Self Exam Method Information - Vertical Strip The National Cancer Institute developed the vertical or linear method of breast self examination. This method is now recommended by the American Cancer Society. Recent research suggests this up and down pattern of BSE is more thoroughly followed by many women. What is most important is that the entire breast, with special attention focused on the area between the breast and underarm area itself, be included in the examination.

When examining your breast using this vertical method, start in the underarm area and have your fingers move downward little by little until you reach the area below the breast. Then move your fingers slightly toward the middle and slowly move back up. Go up and down until the entire area is covered. Breast Self Exam Method Information - Concentric Circle

Some women feel more comfortable using the circular method of BSE while others may divide the breast into wedges, covering one small wedge section at a time. What is most Self-Examination Diagram important in whatever method you use is that the underarm and upper chest areas be examined as well as the entire breast area. When examining your breasts, press gently but firmly to immobilize the skin and roll fingertips over the underlying tissue. Merely sliding the fingertips over the skin does not tell you anything about conditions below the surface. Go over each area three times using (1) light, (2) medium and (3) firm pressure.

Breast Self Exam Method Information - Wedge Section When you have finished examining your left breast with your left arm under your head, repeat the entire examination with your left arm in a relaxed position at your side. (Remember to keep your fingers flat.)

Next, shift the pillow to your right side; examine your right breast with your left hand, in both the arm-overhead and arm-at-your-side positions.

What to Feel For

Carefully notice the "feel" of your normal breast structure, so that you can note at once any changes from what is usual for you. Many women have a normal thickening or ridge of firm tissue under the lower curve of the breast, at its attachment to the chest wall; also the large milk ducts can be felt as a ring of bumps. At the outer edge of the areola. In very slender women, the bony prominences of the chest wall my be mistaken for chest tumors, as may enlarged milk glands, fat tumors, lymph nodes, or benign cysts. All such thickenings should be palpated carefully during each monthly BSE, in order to distinguish stable, normal conditions from potentially dangerous changes. Any lump or other change found in one breast only (especially in the upper outer quadrant) is more likely to be serious than a change which has a mirror image in the other breast. If in doubt about ANY development, consult your doctor.

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In The Shower

Breast Self Exam In The Shower Many lumps are more easily felt when breast and fingers are wet and slippery with soap lather (it reduces the friction). If your breasts are small, place one hand on your head and examine the breast on the side with your opposite had in an up-and-down pattern, as you do lying in bed. If your breasts are large or pendulous, you will be better able to feel them if you immobilize a breast with one hand (first supporting from below, then pressing down from above) and examine it with the other hand (first from above, and then from below).

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In Front of a Mirror

Breast Self Exam In Fron Of a Mirror 1 Some breast disorders will reveal themselves by changes obvious to visual inspection. Again, it is important to become familiar with the normal appearance of your breasts, no woman has two exactly identical breast; many women's breasts are markedly dissimilar. What is important in visual BSE is not the normal difference between your two breasts, but any change in one breast without a similar change in the other.


With your upper body unclothed, stand in front of a large mirror; a good light should be placed off to one side, rather than directly above the mirror or overhead - side lighting helps show irregularities.


Breast Self Exam In Fron Of a Mirror 2 Examine the appearance of your breasts (1) with arms relaxed at your sides; (2) with arms raised; (3) with hands clasped in front of the forehead, palms squeezed together, to tighten chest pectoral muscles; (palms flat on sides of hips, pressing down. In each of Self-Examination Diagram these positions, observe your breasts first directly facing the mirror, then while slowly turning from side to side.

What to Feel For

Note the contours and relative placement of your breasts, the appearance of the areolae and nipples, any distortions or discolorations of the skin or surface texture and their movement as you move your arms and chest muscles. Consider any medical factors (injury, surgery, etc.) or activities (one-sided exercise, such as bowling, tennis, operating machinery, etc.) that might account for either differences or changes in symmetry.

Certain skin condition may signal danger to the breasts. Redness, irritation or prominent veins may indicate an increased blood supply that often accompanies tumor growth. Also look for whitish scale on the nipple or areolae, ulcers, sores or surface erosion that does not heal promptly; or any changes in a pigmented (black or brown) mole anywhere within the breast area. Blocked lymph ducts which may be associated with the growth of tumors can result in "orange-peel" skin - swollen and shiny with deep enlarged pores. Although all of these signs may also be connected with benign conditions, the presence of any of then should signal you see immediate medical attention.

Last inspect your nipples and areolae for changes in size, shape, color, or location; note any flattening, dimpling, indentation or retraction. Of special concern should be any change or distortion of the normal nipple, for distorted ligaments may "point" the nipple toward an adjacent malignant tumor. A flat, inverted or retracted nipple, if it is a recent development should also be regarded as a danger signal; likewise, a nipple which is inverted (outward-pointing) when you are upright but inverts when you lean forward.

There appears to be differences of opinion regarding "milking" or squeezing the nipples to determine if there is any nipple discharge. In the 1995 edition of the medical book, "Ambulatory Gynecology," edited by Drs. D. H. Nichols and R. L. Sweeney, it states, milking or squeezing is only recommended when there is a history of nipple discharge.

Changing Posture

It is particularly important that your visual BSE include all the maneuvers detailed. The Cooper's ligaments that determine and maintain breast structure are delicate and likely to be distorted by the growth of cancer tumors; these tumors adhere to the ligaments - or to the pectoral muscles, nipples, or skin - and result in visible changes in breast contours. Such changes may appear as swelling or flattening, bulges, dimples, or retraction of any area not previously so affected. A fifth maneuver, bending forward from the hips with hands supported on knees or chair backs, allows the breasts to hang straight forward; this position most greatly accentuates both normal and abnormal variances. Normal breast structure falls away in the leaning forward position, and any cancerous entanglement of the Cooper's ligaments will be revealed by a visible distortion in the area affected.

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Important Note:

The Stony Brook Medicine University Physicians website is primarily an informational and educational resource. It should not be used in place of medical advice and recommendations you receive from your health care provider. If you have, or suspect that you have a medical problem or condition, please seek the advice of your health care provider.

Stony Brook Medicine University Physicians provides marketing advice and consultation to the clinical Faculty associated with the University Faculty Practice Corporations (UFPCs). It does not provide medical care directly or indirectly nor does it oversee, direct, manage or supervise the medical care provided by any of the individual Practices. The individual Practices are responsible for the medical care each Practice provides to its patients. Please note that the Practices listed below are separate University Faculty Practice Corporations (UFPCs).