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Breast cancer affects one in eight women during their lives. Breast cancer kills more women in the United States than any cancer except lung cancer. No one knows why some women get breast cancer, but there are a number of risk factors. Risks that you cannot change include

  • Age - the chance of getting breast cancer rises as a woman gets older
  • Genes - there are two genes, BRCA1 and BRCA2, that greatly increase the risk. Women who have family members with breast or ovarian cancer may wish to be tested.
  • Personal factors - beginning periods before age 12 or going through menopause after age 55

Other risks include being overweight, using hormone replacement therapy (also called menopausal hormone therapy), taking birth control pills, drinking alcohol, not having children or having your first child after age 35 or having dense breasts.

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Results 1 - 10 of 2,618 for breast cancer
  1. Breast Cancer (National Library of Medicine)  
    Breast cancer affects one in eight women during their lives. Breast cancer kills more women in the United States than ... cancer. No one knows why some women get breast cancer, but there are a number of risk factors. ...
  2. Male Breast Cancer (National Library of Medicine)  
    Although breast cancer is much more common in women, men can get it too. It happens most often to men ... usually aren't cancer. However, most men with breast cancer have lumps. Other breast symptoms can include Dimpled ...
  3. Breast Cancer Interactive Tutorial (Patient Education Institute)  
    Breast Cancer Introduction Cancer of the breast is the most common form of cancer that affects women but ... arm, as well as muscles involved in breathing. Breast Cancer Breast cancer may originate from either the glands ...
  4. ... Carcinoma - ductal; Carcinoma - lobular; DCIS; LCIS; HER2-positive breast cancer; ER-positive breast cancer; Ductal carcinoma in situ; ...
  5. Treatment Option Overview (Male Breast Cancer) From the National Institutes of Health (National Cancer Institute)  
    Search Español Male Breast Cancer Treatment (PDQ®) Last Modified: 05/23/2014 General Information about Male Breast Cancer Male breast cancer is a disease in which ...
  6. Stages of Breast Cancer From the National Institutes of Health (National Cancer Institute)  
    Search Español Breast Cancer Treatment (PDQ®) Last Modified: 05/23/2014 General Information About Breast Cancer Breast cancer is a disease in which malignant ( ...
  7. Breast Cancer Prevention From the National Institutes of Health (National Cancer Institute)  
    ... to keep cancer from starting. General Information About Breast Cancer Breast cancer is a disease in which malignant (cancer) cells ... Cancer Treatment Genetics of Breast and Ovarian Cancer Breast cancer is the second most common type of cancer ...
  8. Risks of Breast Cancer Screening From the National Institutes of Health (National Cancer Institute)  
    ... cancer screening: Cancer Screening Overview General Information About Breast Cancer Breast cancer is a disease in which malignant (cancer) cells ... Cancer Treatment Genetics of Breast and Ovarian Cancer Breast cancer is the second leading cause of death from ...
  9. Search Español Breast Cancer Treatment and Pregnancy (PDQ®) Last Modified: 05/23/2014 General Information about Breast Cancer and Pregnancy Breast cancer is a disease in ...
  10. Genetics Home Reference: Breast cancer From the National Institutes of Health (National Library of Medicine)  
    ... PubMed Recent literature OMIM Genetic disorder catalog Conditions > Breast cancer On this page: Description Genetic changes Inheritance Diagnosis ... names Glossary definitions Reviewed August 2007 What is breast cancer? Breast cancer is a disease in which certain ...
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