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Understanding HER2-Positive Breast Cancer

Similar to other cancers, breast cancer is divided into different groups or types. HER2-positive is one type of breast cancer. Approximately 20 percent of women with breast cancer have tumors with high levels of the HER2 gene, meaning they have HER2-positive breast cancer.

HER2-positive breast cancer tends to grow and spread more quickly than other types of breast cancer. Fortunately, targeted therapies and treatments to block HER2 receptors are available.