Young women diagnosed with breast cancer within three years of childbirth may face more aggressive disease

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A study led by UCLA Health Jonsson Comprehensive Cancer Center found that young women diagnosed with breast cancer within three years of childbirth, especially within the first year, may have more biologically aggressive disease compared to women who have never given birth. The findings highlight a critical need for understanding postpartum breast cancer behavior.

Breast cancers diagnosed during the first three years after childbirth, particularly within the first year, may be biologically more aggressive than similar cancers in women who have never given birth, according to a new study led by investigators at the UCLA Health Jonsson Comprehensive Cancer Center.