Breastcancer.org Facts and Figures

The site was founded in 2000 by renowned breast oncologist Marisa C. Weiss, MD to help those affected by breast cancer make sense of complex medical information and empower them to make the best decisions throughout their medical and emotional journey.

In the 25 years since it started, Breastcancer.org has helped 250 million people from around the world.

In 2024, Breastcancer.org received on average nearly one million monthly visitors, resulting in more than 18 million pageviews.

The site includes over 700 pages of original, expert-reviewed content providing the most reliable, complete, and up-to-date breast health and breast cancer information available.

Breastcancer.org’s content is produced in consultation with a Professional Advisory Board made up of experts touching all aspects of breast cancer including medical, surgical and radiation oncologists, oncology nurses, plastic surgeons, social workers, nutritionists, and insurance experts.

Breastcancer.org hosts a vibrant and caring peer support community where people can connect with others to share experiences and advice. There have been more than 250,000 registered users of the Breastcancer.org discussion boards over time in 87 forums and more than 160,000 topics.