Is HER2 breast cancer serious? Experts consider the HER2+ breast cancer to be more aggressive than some other breast cancers. That means it may grow faster without treatment. The good news is that treatment for the HER2+ type has improved, so the outlook for you or a loved one is likely better than what some of the numbers show.
Is HER2 breast cancer curable? HER2-positive breast cancer is highly curable because of the availability of these HER2-targeted therapies, so we treat patients fairly aggressively upfront to reduce the risk of them experiencing a stage IV recurrence.
Is it good to be HER2-positive or negative? Breast cancer cells with higher than normal levels of HER2 are called HER2-positive. These cancers tend to grow and spread faster than breast cancers that are HER2-negative, but are much more likely to respond to treatment with drugs that target the HER2 protein.
How long can you live with HER2? The survival rate among patients differ based on the molecular subtype and stage. The survival rate at four years among women with HR+/HER2− is estimated to be 92.5%, followed by HR+/HER2+ at 90.3%, HR−/HER2+ at 82.7%, and HR−/HER2− at 77.0% .