Cancer Treatment Centers of America

Breast cancer information

What is breast cancer?

Breast cancer is a disease characterized by cells in the breast that become abnormal and multiply uncontrollably, forming a tumor. If left untreated, malignant cells may eventually spread beyond the original tumor to other parts of the body, a process called metastasis.

Breast cancer is a disease with many types. Each type of breast cancer is identified by the cells in the breast that become malignant. Hormones also play a role in the development of certain types of breast cancer. Signs of breast cancer include skin changes, pain, nipple discharge, a lump and other symptoms.

Click on the tabs below to learn more about breast cancer types, symptoms, risk factors and stages.

 

Breast cancer incidence

According to the National Cancer Institute, one in eight women who live to be age 80 will develop breast cancer in her lifetime. This makes the disease the second most commonly diagnosed cancer among American women, after skin cancer. An estimated 255,180 new cases of breast cancer will be diagnosed in women in the United States in 2017, according to the American Cancer Society.

One in four cancers diagnosed in the U.S. is breast cancer, yet women are not the only ones receiving the diagnosis. Although the incidence of breast cancer is much less common among men, approximately 2,470 American men will learn they have breast cancer in 2017, the American Cancer Society estimates.

Breast cancer is one of the most highly publicized cancers in the media today. Local and national breast cancer awareness events are reminders of its prevalence. Many of us know someone who previously had or is currently battling breast cancer. Fortunately, advancements in breast cancer research provide new treatment options and technologies for those battling the disease.

Breast cancer diagnosis

Top questions about breast cancer
Learn the answers to patients' top answers about breast cancer.
Types of breast cancer

Learn about the different types of breast cancer.

Breast cancer symptoms

Read about common breast cancer symptoms.

Breast cancer risk factors

Read about common risk factors for breast cancer.

Stages of breast cancer

Learn about the stages of breast cancer.

Inherited gene mutations linked to breast cancer
Read about the inherited gene mutations linked to breast cancer.

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We understand you may be feeling overwhelmed with questions and concerns about your type of cancer and what it all means. We're here to help guide you through the process.

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