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Breast cancer is a kind of cancer that begins as a growth of cells in the breast tissue. After skin cancer, breast cancer is the most common cancer diagnosed in women in the United States. But breast cancer doesn't just happen in women.
Learn what causes breast cancer including inherited (BRCA) or acquired changes in certain genes, lifestyle, or hormone changes.
What causes breast cancer? Experts know breast cancer happens when breast cells mutate and become cancerous cells that divide and multiply to create tumors. They aren’t sure what triggers that change. However, research shows there are several risk factors that may increase your chances of developing breast cancer. These include:
Learn what causes breast cancer (and what doesn't cause breast cancer, despite common myths).
Ductal cells. Ductal breast cancer, also called ductal carcinoma, is the most common type of breast cancer. This type of cancer starts in cells in the lining of a milk duct within the breast. The ducts can carry breast milk to the nipple. Lobular cells. Lobular breast cancer, also called lobular carcinoma, starts in the lobules of the breast.
Breast cancer is a disease in which abnormal breast cells grow out of control and form tumours. If left unchecked, the tumours can spread throughout the body and become fatal. Breast cancer cells begin inside the milk ducts and/or the milk-producing lobules of the breast.
Tools & Resources. Fact Sheet: Breast Cancer Facts for Patients and Caregivers. Get the facts about breast cancer, including risk factors, prevention, early detection, treatment, and more. Quiz: How Much Do You Know About Breast Cancer? When it comes to your breast health, don't be fooled by rumors and misinformation.
Receiving a mammogram Enlarge image. Breast MRI Enlarge image. Core needle biopsy Enlarge image. Breast cancer diagnosis often begins with an exam and a discussion of your symptoms. Imaging tests can look at the breast tissue for anything that's not typical.
Download Section as PDF. What Is Breast Cancer? Breast cancer is a type of cancer that starts in the breast. It can start in one or both breasts. On this page. [show] How breast cancer starts. Breast cancer occurs almost entirely in women, but men can get breast cancer, too. Cancer starts when cells begin to grow out of control.
This is also called early detection, and it can save your life. Treatments for breast cancer can include surgery, radiation, chemotherapy, hormone therapy, or targeted therapy. What are the signs of breast cancer? Lumps in your breasts, swelling, and redness are the most common signs and symptoms of breast cancer.