In a breakthrough for women’s health technology, Flo Health has launched the world’s first scientifically validated digital assessment tool designed explicitly for perimenopause symptoms, addressing a massive healthcare gap affecting over one billion women globally who receive little support during this critical life transition.
The Perimenopause Score, developed by Flo’s science and medical teams as the centerpiece of their new “Flo for Perimenopause” feature, represents the first digital tool of its kind. The assessment evaluates users based on their symptoms. It helps them understand the real-life impact of these changes, filling a void where 54% of women report feeling inadequately informed about perimenopause.
More than a billion women worldwide will have gone through perimenopause and menopause by 2025, yet the medical system has largely failed to support them. The new feature, launched on July 21, 2025, offers personalized guidance and support created in collaboration with Flo’s team of over 100 medical experts.
The tool’s development was informed by groundbreaking research published in npj Women’s Health, which surveyed 4,432 women and revealed surprising patterns. Psychological symptoms like anxiety, depressive mood, and irritability peaked in women aged 41-45, while vasomotor symptoms like hot flashes were most prominent in women aged 51-55. Remarkably, over 55% of women aged 30-35 reported moderate to severe symptoms typically associated with perimenopause.
“Perimenopause isn’t a mystery—it’s a natural life stage that deserves nuanced understanding, support, and open conversation,” said Dr. Sameena Rahman, a board-certified OB/GYN and menopause specialist. “A tool like Flo for Perimenopause could be truly transformative for the many women I see who arrive confused, overwhelmed, and unaware of what their bodies are going through.”
The platform offers several innovative features beyond the Perimenopause Score. It includes adapted cycle tracking that acknowledges the irregularities typical during perimenopause, showing a window of time when the next period might arrive rather than an exact date. Users can track symptoms ranging from hot flashes and fatigue to mood changes, accessing a curated content library with daily expert-led insights.
The need for such innovation is critical. Research from Harvard Medical School shows that less than 1% of published medical studies focus on menopause, with perimenopause likely even more neglected. This research gap has left over 90% of women without any education about menopause in school, and more than 60% feeling uninformed about what to expect.
Study co-author Dr. Jennifer Payne, Professor of Psychiatry and Neurobehavioral Sciences at the University of Virginia, emphasized the clinical significance: “These findings indicate that perimenopausal symptoms vary in different age groups. For example, mood symptoms are most prominent in early perimenopause (age 41 to 45), and vasomotor and other physical symptoms are more prominent in later perimenopause (age 51 to 55), which has not been demonstrated before.”
The launch timing is particularly significant as Flo achieved a strategic settlement and achieved unicorn status with a $200 million Series C funding round, with plans to expand into perimenopause and menopause support specifically. As the first European femtech unicorn, Flo now serves 76 million monthly active users. She is well-positioned to address this underserved market segment, even as legal proceedings have highlighted the importance of responsible data practices in the industry, where major platforms have faced scrutiny for privacy violations.
The platform also features collaboration with comedian and actress Laura Benanti, who brings authentic advocacy to help break down stigma surrounding perimenopause. Additionally, Flo offers anonymous community support through Secret Chats, where women can discuss intimate topics and obtain support from millions of users worldwide.
Dr. Anna Klepchukova, Chief Medical Officer of Flo Health, underscored the company’s responsibility: “As one of the few femtech unicorns in the industry, we have a deep responsibility to ensure the highest medical standards for our users. By collaborating with our team of 120+ medical experts and investing in research with world-class universities, Flo is committed to closing the knowledge gaps in women’s health.”
By creating the first scientifically validated digital tool for perimenopause assessment, Flo Health isn’t just launching a feature – it’s establishing a new standard for how technology can support women through one of life’s most challenging transitions. With one billion women needing this support, the impact could reshape how society approaches this universal experience.