Nathan López Bezerra
New research shows that menopause acts as a turning point for the entire female reproductive system, not just the ovaries. Scientists have long treated menopause as a single biological event, but the study reveals that different reproductive organs age on their own timelines, with some changing years before menopause and others shifting abruptly around it.
Using AI to map the female reproductive system
Researchers in Barcelona analyzed more than 1,100 tissue images from 304 women aged 20 to 70. Using artificial intelligence and deep learning, they examined seven reproductive organs: the uterus, ovary, vagina, cervix, breast, and fallopian tubes. The team tracked both visible tissue changes and the molecular processes behind aging, including the expression of thousands of genes in each organ.
It is the first large-scale map of female reproductive system aging. The findings challenge traditional views of menopause. Marta Melé, director of the study and a lead researcher at the Barcelona Supercomputing Center, said in a press release: “Until now, we tended to consider menopause the end of the ovary’s reproductive function. However, our results show that it acts as a turning point that profoundly reorganizes other organs and tissues of the reproductive system, and allow us to identify the genes and molecular processes that could be behind these changes.”
Organs age on their own timelines
The study found that reproductive organs do not age uniformly or even in a straight line. The ovary and vagina, for example, age progressively beginning years before menopause. The uterus, on the other hand, undergoes more abrupt changes that happen around the same time as menopause. The uterine mucosa and uterine muscle are especially sensitive to menopause-related changes, but they respond in different ways. This shows that even within a single organ, different tissues age at different rates.
Blood tests could replace biopsies
Beyond mapping tissue changes, the researchers discovered a finding with major clinical potential: signals of reproductive organ aging can be found in the blood. After analyzing blood plasma samples from more than 21,000 women, the team identified biomarkers that could allow non-invasive monitoring of reproductive organ health. This would make it possible to detect menopause-related risks earlier, without needing biopsies.
The approach mirrors a growing trend in preventive medicine where blood tests are used to find early signs of health changes before symptoms appear.
The takeaway
Life expectancy is rising, and more women are spending more years after menopause. According to the World Health Organization, women over 50 already made up 26% of the world’s population in 2021. Understanding how the reproductive system ages is important for improving prevention, diagnosis, and treatment of cardiovascular, metabolic, neurodegenerative, and bone diseases linked to menopause, which affect a growing share of the population.
This research lays the groundwork for more precise and equitable medicine in women’s health. It adds to a growing body of work exploring how to support healthy aging at every stage of life.
