MedicalTerminology DB

Meaning of preventive mastectomy: Surgery to reduce the risk of developing breast cancer by removing one or both breasts before disease develops.

Definition of preventive mastectomy

Surgery to reduce the risk of developing breast cancer by removing one or both breasts before disease develops. Also called prophylactic mastectomy.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.