Eli5: How come nulliparity vs having 1-2 pregnancies(most women have) create a difference in risk of reproductive cancers?

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Women spend most of their lives without pregnancy, and when they’re pregnant, it’s usually 1-2 years of their whole life.

Shouldn’t it be not that important when it comes to elevated risk of reproductive cancers (breast, uterine, ovarian etc) if the woman is nullipar?

What’s the explanation?

In: Biology

4 Answers

Anonymous 0 Comments

sorry are you asking why getting a massive dose of exotic body changing hormones that cause a whole hoste of physical effects including increased breast size, growing extra temporary organs in the womb (placenta) and generally putting high stress on all reproductive organs changes risk of cancer in the effected areas?

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