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Atypical ductal hyperplasia (ADH)

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Atypical ductal hyperplasia (ADH)

Atypical ductal hyperplasia (ADH) is an abnormal overgrowth of cells within the milk ducts of the breast. ADH is not cancer. But having ADH increases the risk of breast cancer.

ADH is usually found with a mammogram. It is diagnosed with a biopsy of the breast. If you have ADH, it is important to have follow-up testing to watch for breast cancer. You may need to have a breast exam every 6 months and a mammogram once a year.

Current as of: October 25, 2023

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
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This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

NOTICE: This health information was not created by Columbia University Irving Medical Center and may not necessarily reflect specific CUIMC practices. For medical advice to your personal condition, please consult your doctor. Medical advice disclaimer.