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Pregnancy not linked to risk of breast cancer returning

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Women who have had the most common form of the disease are not at risk of increasing their chances of the cancer returning by becoming pregnant, new research suggests.

Around four-fifths of women with the condition suffer from oestrogen receptor positive breast cancer, and there had been fears that increasing the level of oestrogen in their bodies by becoming pregnant could boost the chances of the disease returning.

But the research, presented at the European Breast cancer Conference in Vienna, suggests that there is no such risk as there was no difference in the length of time pregnant women with the condition survived without the disease returning compared to those who did not become pregnant.

Leading the study, Dr Hatem Azim, said: “Out of all the women, 57% had ER+ disease, but the study showed there was no difference in the length of time women with either ER+ or ER negative [ER-] disease survived without their disease recurring compared with those who did not become pregnant.”


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