Potential mechanisms for risk reductions in breast cancer for women with a history of preeclampsia could be due to lower levels of oestrogens4 or of growth factors such as IGF‐16 and IGF1R34 in such women, factors which have been implicated in breast cancer risk,35, 36 and lower levels of VEGF,37 an important component in breast tumour angiogenesis.38 Furthermore, women with preeclampsia were reported to have a lower breast cancer susceptibility polygenic risk score as well as lower mammographic density,39 factors which are associated with a reduced risk of breast cancer.40 This evidence concerns the gene VEGFA and preeclampsia.