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Breast Cancer

What Is Early-Stage Breast Cancer?

When abnormal cells start growing in the breast, it could mean that breast cancer is developing.

Marisa Taylor KarasSanjai Sinha, MD
Written by Marisa Taylor Karas | Reviewed by Sanjai Sinha, MD
Updated on April 9, 2025
Featuring Stephanie Bernik, MD, FCASReviewed by Sanjai Sinha, MD | April 9, 2025

“Early-stage breast cancer” is an unofficial label for any breast cancer in the earlier stages, such as stage 0, I, and II. In this video, learn what early-stage breast cancer is and what makes it different from advanced stages, according to Stephanie Bernik, MD, Breast Oncologic Surgeon at Mount Sinai Hospital in New York City.

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Marisa Taylor Karas is a freelance journalist based in Brooklyn who has covered health, gender, and technology for 15 years. She previously worked at The Wall Street Journal, The Guardian, and Al Jazeera America, among other publications, and also served as managing editor of the Mellon Foundation in New York City.
Sanjai Sinha, MD
Reviewed by:
Sanjai Sinha, MD
Sanjai Sinha, MD, is a board-certified physician with over 20 years of experience. He specializes in internal medicine.

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