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How do hormones affect breast cancer treatment?

Estrogen and progesterone are hormones that are produced by your ovaries. These hormones help your normal breast cells grow and can help some cancer cells grow. It's good if your breast cancer cells have hormone receptors. Doctors can treat these cells with medicine that reduces estrogen in your body and they can be treated with medicine that keeps estrogen away from receptors. Different treatment is available if the cancer has no receptors.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.