Paras Yadav/LinkedIn
Jul 18, 2026, 07:50
Paras Yadav: Why Uterine Aging Matters in Fertility and IVF Outcomes?
Paras Yadav, Embryologist Aveta IVF center, shared a post on LinkedIn:
“We often blame egg quality for age-related fertility decline.
But the data tells a different story: the uterus ages too – and it plays an independent, significant role.
Here is what the latest reproductive science reveals about the aging endometrium:
Structural Changes:
- Endometrial thickness decreases by an average of 0.52mm.
- Progressive loss of spiral arteries leads to reduced blood flow.
- Increased fibrosis (scarring) and atrophy alter the physical environment.
Molecular and Cellular Shifts:
- Overexpression of aging genes (FOXC1) and loss of essential epigenetic marks (H3K27ac).
- Increased cellular senescence and inflammatory ‘inflammaging’ (IL17RB).
- Decline in progesterone receptors (PGR) and receptivity markers (HOXA10), making the lining less responsive to hormones.
The Clinical Impact (Hard Numbers):
Even when we control for egg quality using donor eggs:
- Women 49+ had a 31.7% live birth rate vs. 46.2% in women 35–40.
- Miscarriage rates jumped from 24.2% to 37.6%.
- Overall, advanced age lowers implantation odds by 27% and clinical pregnancy by 20% – independent of the embryo.
The Takeaway:
The uterine factor is real. As we push the boundaries of reproductive medicine, we must invest in anti-aging strategies for the uterine environment, not just ovarian reserve.”
Stay updated on all scientific advances in the field of fertility with Fertility News.
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