Reproductive factors

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Reproductive factors can have an important effect on a woman’s risk of developing endometrial cancer by influencing her hormone levels. Changes that increase the level and activity of the female hormone oestrogen can be associated with risk of endometrial cancer. 

Reproductive factors associated with an increased risk of endometrial cancer risk include being younger when periods start and being older at menopause. 

Some reproductive factors may protect against developing endometrial cancer. This includes having children and breastfeeding.