Fact Check: Did the Women’s Health Initiative Find No Breast Cancer Risk From Hormone Therapy?

Media Bias Fact Check (MBFC) publishes daily vetted fact checks from verified IFCN-approved sources. Each claim is independently reviewed for accuracy and context.

Claimant: Marty Makary

Claim: The Women’s Health Initiative did not show a statistically significant breast cancer risk from hormone therapy.

Rating: FALSE

Explanation: Follow-up analyses from the Women’s Health Initiative found a statistically significant increase in breast cancer risk associated with combined estrogen-progestin therapy. This elevated risk persisted over long-term follow-up, contradicting claims that the study showed no significant association.

View Full Fact Check

Date: 12/28/2025

 

Do you appreciate our work? Please consider one of the following ways to sustain us.

MBFC Ad-Free

or

MBFC Donation

Last Updated on December 28, 2025 by Media Bias Fact Check

Found this insightful? Please consider sharing on your Social Media:

Explore Similar Sources:

  1. Breast Cancer Research Journal – Bias and Credibility
  2. Fact Check – Does a South Korea study prove COVID-19 vaccines increase cancer risk?
  3. Pseudoscience Dictionary: Aroma Therapy
  4. Pseudoscience Dictionary: Cupping Therapy
  5. Alzheimer’s Research & Therapy – Bias and Credibility