Breast cancer screening means checking a woman's breasts for cancer before there are signs or symptoms of the disease. Three main tests are used to screen the breasts for cancer. Talk to your doctor about which tests are right for you, and when you should have them.

• Mammogram. A mammogram is an X-ray of the breast. Mammograms are the best method to detect breast cancer early when it is easier to treat and before it is big enough to feel or cause symptoms. Having regular mammograms can lower the risk of dying from breast cancer. ¹ If you are age 40 years or older, be sure to have a screening mammogram every one to two years.
   

• Clinical breast exam. A clinical breast exam is an examination by a doctor or nurse, who uses his or her hands to feel for lumps or other changes. ²
   

• Breast self-exam. A breast self-exam is when you check your own breasts for lumps, changes in size or shape of the breast, or any other changes in the breasts or underarm (armpit).

Which tests to choose: Having a clinical breast exam or a breast self-exam have not been found to decrease risk of dying from breast cancer. ¹ Keep in mind that, at this time, the best way to find breast cancer is with a mammogram. If you choose to have clinical breast exams and to perform breast self-exams, be sure you also get regular mammograms.

Doctors often use additional tests to find or diagnose breast cancer.

• Breast ultrasound. A machine uses sound waves to make detailed pictures, called sonograms, of areas inside the breast.
   

• Diagnostic mammogram. If you have a problem in your breast, such as lumps, or if an area of the breast looks abnormal on a screening mammogram, doctors may have you get a diagnostic mammogram. This is a more detailed X-ray of the breast.
   

• Magnetic resonance imaging (MRI). A kind of body scan that uses a magnet linked to a computer. The MRI scan will make detailed pictures of areas inside the breast.
   

• Biopsy. This is a test that removes tissue or fluid from the breast to be looked at under a microscope and do more testing. There are different kinds of biopsies (for example, fine-needle aspiration, core biopsy, or open biopsy).

Breast cancer is treated in several ways. It depends on the kind of breast cancer and how far it has spread. Treatments include surgery, chemotherapy, hormonal therapy, biologic therapy, and radiation. People with breast cancer often get more than one kind of treatment.

• Surgery. An operation where doctors cut out and remove cancer tissue.
   

• Chemotherapy. Using special medicines, or drugs to shrink or kill the cancer. The drugs can be pills you take or medicines given through an intravenous (IV) tube, or, sometimes, both.
   

• Hormonal therapy. Some cancers need certain hormones to grow. Hormonal treatment is used to block cancer cells from getting the hormones they need to grow.
   

• Biological therapy. This treatment works with your body's immune system to help it fight cancer or to control side effects from other cancer treatments. Side effects are how your body reacts to drugs or other treatments. Biological therapy is different from chemotherapy, which attacks cancer cells directly.
   

• Radiation. The use of high-energy rays (similar to X-rays) to kill the cancer cells. The rays are aimed at the part of the body where the cancer is located.

It is common for doctors from different specialties to work together in treating breast cancer. Surgeons are doctors that perform operations. Medical oncologists are doctors that treat cancers with medicines. Radiation oncologists are doctors that treat cancers with radiation.

Choosing which kind of treatment is right for you may be hard. If you have breast cancer, be sure to talk to your doctor about the treatment options available for your type and stage of cancer. Doctors can explain the risks and benefits of each treatment and their side effects.

Sometimes people get an opinion from more than one breast cancer doctor. This is called a "second opinion." Getting a second opinion may help you choose the treatment option that is right for you.

For More Information

Centers for Disease
Control and Prevention
Division of Cancer
Prevention and Control
4770 Buford Hwy, NE
MS K-64
Atlanta, GA 30341-3717

Call: 1 (800) CDC-INFO

Some Other Helpful Medical Resources

- WebMd

- drkoop.com

- National Institutes of Health (ww.nlm.nih.gov/medlineplus)