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Home page>Oncology>Her2 Positive Breast Cancer>What does it mean to be HER2 positive vs. HER2 negative?

What does it mean to be HER2 positive vs. HER2 negative?

Written byJameson Kowalczyk
Medically reviewedbyAmy Gonzales, MDin December 2024
Updated onOctober 25, 2024
Description
Breast CancerCancer

The difference between HER2-positive and HER2-negative breast cancer is related to the amount of a certain protein.

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