New research reveals that menopause is not just a single event when the ovaries stop working, but a turning point that affects the entire female reproductive system. Some organs start changing years before menopause, while others shift abruptly around it.
Using AI to map the female reproductive system
Researchers in Barcelona analyzed more than 1,100 tissue images from 304 women between the ages of 20 and 70. They used artificial intelligence and deep learning to study seven reproductive organs: the uterus, ovary, vagina, cervix, breast, and fallopian tubes. The team tracked visible tissue changes and the molecular processes tied to aging, including the expression of thousands of genes in each organ.
This is the first large-scale map of female reproductive system aging, and the results challenge how scientists have traditionally understood 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.”
Your organs age on their own timelines
The study found that reproductive organs do not age uniformly or even linearly. The ovary and vagina age progressively, starting years before menopause. The uterus, on the other hand, undergoes more abrupt changes that happen around the same time as menopause. Even within the uterus, the mucosa and muscle respond differently to menopause, showing that different tissues age at different rates inside a single organ.
Blood tests could replace biopsies
Beyond mapping tissue changes, the researchers discovered that signals of reproductive organ aging can be detected in 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 could lead to earlier detection of menopause-related risks that were previously only identifiable through biopsies.
The approach mirrors a growing trend in preventive medicine, where blood tests are increasingly used to detect early signs of health changes before symptoms appear.
The takeaway
With life expectancy increasing, more women are spending more years in the postmenopausal stage. According to the World Health Organization, women over 50 already represented 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 associated with menopause that affect a growing part of the population.
This research lays the groundwork for more precise and equitable medicine in women’s health and adds to a growing body of work exploring how to support healthy aging at every stage.
