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What Is Chemotherapy for Breast Cancer?

Chemotherapy is a chemical, or group of chemicals, designed to stop the growth of cancer cells. Chemotherapy drugs may be given intravenously, orally, or as a combination of the two. There are many chemotherapy drugs used to treat breast cancer. 

When breast cancer is limited to the breast or lymph nodes, chemotherapy may be given after a lumpectomy or mastectomy. This is done to help reduce the chance of breast cancer coming back.

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Me and the Girls: Ilene Smith

WebMD senior writer Miranda Hitti interviewed breast cancer survivors as part of a series for Breast Cancer Awareness Month. The series, called “Me & the Girls,” explores the personal stories of these women after they were diagnosed with breast cancer. Breast cancer survivor Ilene Smith, MS, RD, 49, lives in the New York area. In late October 2007, Smith felt a lump in her left breast while on a conference call for work. "I got cold, and so I put my hand under my arm, and I felt...

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If the breast tumor is large, chemotherapy is sometimes given before surgery in order to shrink the tumor so it can be removed more easily or so that a lumpectomy can be performed instead of a mastectomy.

Chemotherapy may also be given as the main treatment for women whose cancer has spread to other parts of the body outside of the breast and lymph nodes.

WebMD Medical Reference

Reviewed by Sujana Movva, MD on March 19, 2013

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