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Breast Cancer, Pregnancy and (Green-top Guideline No. 12)

Published: 27/04/2011

This title was first published as RCOG advice in 1997 and subsequently as a Green-top Guideline in January 2004. This document is the second edition of the guideline and updates the previous 2004 edition.

The third edition of this guideline is currently in development.

December 2014: New evidence and guidance in this field were reviewed in 2014 and it was decided that revision of this guideline would be deferred to a later date. The version available on the website and app will remain valid until replaced.

Breast cancer remains the most common cancer in women, with a lifetime risk of almost 11% (one in nine) in the UK. There has been an overall increase in the incidence of breast cancer but in the UK mortality has fallen by over 30% in the last decade. It is likely that this is due to the widespread introduction of tamoxifen in treatment regimens and the introduction of breast screening. Obstetricians will see an increasing number of women who are pregnant or seeking pregnancy after treatment for breast cancer.

This guideline provides clinical guidance on how to care for women of childbearing age with a diagnosis or history of breast cancer. The management of pregnancy in relation to breast cancer is multidisciplinary, and the guideline will be useful to obstetricians and gynaecologists, fertility specialists and midwives as well as oncologists and breast care nurses.