RETIRED: Breast self-examination.

This document has been archived because it contains outdated information. It should not be consulted for clinical use, but for historical research only. Please visit the journal website for the most recent guidelines.

RETIRED: Mastalgia.

This document has been archived because it contains outdated information. It should not be consulted for clinical use, but for historical research only. Please visit the journal website for the most recent guidelines.

Breast cancer, pregnancy, and breastfeeding.

Objective: The primary objective of this guideline is to provide Canadian physicians up-to-date, accurate information and recommendations regarding: i) impact of pregnancy and lactation on risk of breast cancer; ii) prognosis of breast cancer diagnosed during pregnancy and lactation; iii) risk of recurrence of breast cancer with the occurrence of subsequent pregnancies; iv) feasibility of breastfeeding and its impact on the prognosis of women with breast cancer.

Options: This guideline reviews evidence on whether pregnancy and breastfeeding change the lifetime risk for breast cancer in women, and whether breast cancer diagnosed during pregnancy or during lactation has a different prognosis. It offers the clinician advice on the diagnostic options to help identify breast cancer in pregnancy and/or during lactation, and offers evidence-based recommendations in managing an ongoing pregnancy and/or lactation when treatment for breast cancer is being planned.