Screening
Screening Mammogram
Clinical Breast Exam
Breast Self-Exam
Screening
for breast cancer before there are
symptoms
can be important.
Screening can help doctors find and treat cancer early. Treatment is more
likely to work well when cancer is found early.
Your doctor may suggest the following screening tests for breast cancer:
You should ask your doctor about when to start and how often to check for
breast cancer.
To find breast cancer early, NCI recommends that:
-
Women in their 40s and older should have mammograms every 1 to 2 years. A
mammogram is a picture of the breast made with x-rays.
-
Women who are younger than 40 and have risk factors for breast cancer should
ask their health care provider whether to have mammograms and how often to have
them.
Mammograms can often show a breast lump before it can be felt. They also can
show a cluster of tiny specks of
calcium.
These specks are called
microcalcifications.
Lumps or specks can be from cancer,
precancerous
cells, or
other conditions. Further tests are needed to find out if abnormal cells are
present.
If an abnormal area shows up on your mammogram, you may need to have more
x-rays. You also may need a
biopsy.
A biopsy is the only way to tell for sure
if cancer is present. (The "Diagnosis" section has more information
on biopsy.)
Mammograms are the best tool doctors have to find breast cancer early. However,
mammograms are not perfect:
-
A mammogram may miss some cancers. (The result is called a "false negative.")
-
A mammogram may show things that turn out not to be cancer. (The result is
called a "false positive.")
-
Some fast-growing tumors may grow large or spread to other parts of the body
before a mammogram detects them.
Mammograms (as well as dental x-rays, and other routine x-rays) use very small
doses of radiation. The risk of any harm is very slight, but repeated x-rays
could cause problems. The benefits nearly always outweigh the risk. You should
talk with your health care provider about the need for each x-ray. You should
also ask for shields to protect parts of your body that are not in the picture.
During a clinical breast exam, your health care provider checks your breasts.
You may be asked to raise your arms over your head, let them hang by your
sides, or press your hands against your hips.
Your health care provider looks for differences in size or shape between your
breasts. The skin of your breasts is checked for a rash, dimpling, or other
abnormal signs. Your nipples may be squeezed to check for fluid.
Using the pads of the fingers to feel for lumps, your health care provider
checks your entire breast, underarm, and collarbone area. A lump is generally
the size of a pea before anyone can feel it. The exam is done on one side, then
the other. Your health care provider checks the lymph nodes near the breast to
see if they are enlarged.
A thorough clinical breast exam may take about 10 minutes.
You may perform monthly breast self-exams to check for any changes in your
breasts. It is important to remember that changes can occur because of aging,
your
menstrual cycle,
pregnancy, menopause, or taking birth control pills or
other
hormones.
It is normal for breasts to feel a little lumpy and uneven.
Also, it is common for your breasts to be swollen and tender right before or
during your menstrual period.
You should contact your health care provider if you notice any unusual changes
in your breasts.
Breast self-exams cannot replace regular screening mammograms and clinical
breast exams. Studies have not shown that breast self-exams alone reduce the
number of deaths from breast cancer.
You may want to ask the doctor the following questions about screening:
- Which tests do you recommend for me? Why?
- Do the tests hurt? Are there any risks?
- How much do mammograms cost? Will my health insurance pay for them?
- How soon after the mammogram will I learn the results?
- If the results show a problem, how will you learn if I have cancer?
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