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Breast Cancer

Spread of Her2



How quickly does HER2 cancer spread? How soon should it be treated?


Her2 positive breast cancers are somewhat more aggressive than her2 negative cancers. All breast cancers should be evaluated and treated, either with surgery or with systemic treatment (usually chemotherapy), within weeks or sometimes a month or two after initial diagnosis. If it takes a few more weeks to get a second opinion or obtain any additional tests or biopsies, that will not affect prognosis or chance of spread.

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Response by:

Paula  Silverman, MD Paula Silverman, MD
Associate Professor of Medicine
School of Medicine
Case Western Reserve University