Seven Differences Between IVF and Natural Pregnancy
In the field of reproductive medicine, the difference between ovulation induction and natural pregnancy is like the ecology of a natural forest versus an artificial nursery. According to the Harvard Center for Reproductive Medicine 2025 data, 40% of IVF cycles globally use traditional ovulation regimens, but the microenvironment of embryo development is biologically different from that of natural cycles. This article combines research from the New England Journal of Medicine, Human Reproduction, and other top journals to reveal seven major differences between IVF and natural pregnancy. I. The “Natural Maturation Law” of Egg Maturity Key Finding: Egg maturity is 89% in natural cycles, significantly higher than 82% in fertile cycles16Difference in fertilization rate: 70% in natural cycle vs 58% in…
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