New research reveals that menopause is not just a single event marking the end of ovarian function, but a turning point that affects the entire female reproductive system. Some organs begin changing years before menopause, while others shift abruptly around the time it occurs. The study, led by researchers in Barcelona, used artificial intelligence to map how the female reproductive system ages.
The team analyzed more than 1,100 tissue images collected from 304 women between the ages of 20 and 70. They examined seven reproductive organs: the uterus, ovary, vagina, cervix, breast, and fallopian tubes. By using deep learning techniques, the researchers tracked both visible tissue changes and molecular processes, including the expression of thousands of genes. It is the first large-scale map of female reproductive system aging, and the findings challenge traditional scientific understanding.
Marta Melé, the director of the study and a lead researcher at the Barcelona Supercomputing Center, said in a press release that until now, menopause was considered the end of the ovary’s reproductive function. However, the results show that menopause acts as a turning point that profoundly reorganizes other organs and tissues of the reproductive system. The study identified the genes and molecular processes behind these changes.
The research 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, experiences more abrupt changes that occur on a similar timeline as menopause itself. Even within a single organ, different tissues age at different rates. The uterine mucosa and uterine muscle, for example, are both sensitive to menopause-related changes but respond differently.
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 means earlier detection of menopause-related risks that previously required biopsies. The approach mirrors a growing trend in preventive medicine where blood tests are used to detect early signs of health changes before symptoms appear.
With life expectancy increasing, women are spending more years in the postmenopausal stage. According to the World Health Organization, women over 50 represented 26 percent 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. The research lays the groundwork for more precise medicine in women’s health and adds to a growing body of work on supporting healthy aging at every stage.
