When Your Hormones Take a Toll on Your Mental Health
Before I get into the research, I want to share something personal. I believe I struggled with PMDD earlier in my own life. Looking back, my emotional symptoms in the days before my period felt severely disproportionate to what my friends seemed to be experiencing. I could not understand why I was plagued with such severe physical pain and mental health symptoms. It was not until I entered my Master of Counseling program that I even encountered the term PMDD and began to understand what I had likely been going through. That realization changed the way I understood my own history, and it is a big part of why this topic matters so much to me.
If any part of that resonates with you, keep reading. You are not alone!
PMDD: Not Your Average PMS
If you have ever wondered whether what you experience before your period is “normal,” here is a useful way to think about it. Premenstrual syndrome, or PMS, affects up to 80% of women to some degree. PMDD is like PMS times a hundred. It is the severe end of the spectrum, and it is a legitimate psychiatric diagnosis listed in the DSM-5 under depressive disorders (American Psychiatric Association [APA], 2013).
PMDD affects between 3% and 8% of women of reproductive age. Core symptoms include severely depressed mood, intense anxiety and tension, marked mood swings, and persistent irritability or anger and can even include more severe symptoms like temporary body dysmorphia and suicidal ideation. These symptoms appear during the luteal phase of the menstrual cycle, the two weeks before your period and often more intensely right before menstruation, and typically lift within days of menstruation onset (APA, 2013). Importantly, PMDD is not caused by abnormal hormone levels. Your hormones are doing exactly what they are supposed to do. The problem is that your brain and nervous system are unusually sensitive to those normal hormonal shifts (Bücklein-Ehlers et al., 2026).
That distinction is critical. PMDD is not a character flaw or an overreaction. It is a neurobiological vulnerability that must be understood from a biopsychosocial perspective.
The Anxiety Connection: More Common Than You May Think
Here is where things get complicated for a lot of women. PMDD does not always travel alone. Research shows that up to 70% of women with PMDD have at least one comorbid psychiatric condition (Oliveri et al., 2025). When it comes to anxiety specifically, studies have found that 53% of women seeking treatment for PMDD met criteria for an anxiety disorder, primarily generalized anxiety disorder (GAD) or other phobias (Yen et al., 2020). A focused case-control study found that 14% of women with PMDD had comorbid GAD, and that women in that group showed higher anxiety, depression, and irritability not just during the luteal phase but also during the follicular phase, when PMDD symptoms are typically supposed to resolve (Yen et al., 2020).
So this means, if you have both PMDD and GAD, your symptoms may not fully go away after your period starts. The anxiety does not completely clock out which makes it even harder to know where one mental health condition ends and the other begins. It’s a mystery to figure out!
Major depressive disorder (MDD) shows similar patterns. Research suggests that over half of women diagnosed with PMDD have a lifetime history of MDD, and that the presence of MDD makes PMDD symptoms persistently more severe (Bengi et al., 2025). A large 2025 systematic review and meta-analysis confirmed high comorbidity rates between PMDD and mood disorders regardless of how studies were conducted, and found that having both conditions at once is associated with lower quality of life and higher suicide risk (Bengi et al., 2025).
What is emerging from the research is that women with emotional comorbidities like GAD and MDD typically exhibit persistently strong affective symptoms and significantly lower levels of psychological resilience, suggesting a trait-level vulnerability that extends beyond the menstrual cycle itself (Border & Miller, 2025). In other words, the emotional difficulty is not just a monthly visitor. It is woven into how the brain processes stress and regulates emotion across the entire month.
A Brain That Stays on High Alert
A 2026 study using MRI data found that women with PMDD had higher scores of neuroticism and trait irritability compared to healthy controls, and that these personality traits were linked to differences in brain structure, specifically in areas tied to emotional memory and reactivity (Bücklein-Ehlers et al., 2026). These brain differences were present across cycle phases, not just during the symptomatic luteal phase. This supports the idea that PMDD involves a deeply rooted neurological vulnerability rather than a monthly hormonal switch being flipped on and off.
For women who also carry a diagnosis of anxiety or depression, this means two overlapping systems are both working harder than they should. Emotional regulation, the brain’s ability to manage the intensity and timing of your emotional responses, is impaired in both PMDD and anxiety disorders. Research consistently shows that women with PMDD struggle most with emotional clarity and tend to rely on less helpful coping strategies like rumination, especially in the late-luteal phase (Lambert et al., 2025).
Both emotional regulation and psychological resilience contribute to how severe your symptoms are and how much they vary across your cycle (Border & Miller, 2025). Resilience here does not mean toughness. It means the capacity to recover and bounce back after periods of emotional distress. When resilience is chronically low, recovery takes longer, and each new cycle brings you back to a lower baseline.
What About Endometriosis?
In my own research and clinical experience, I have also found a compelling overlap between PMDD and endometriosis worth discussing. Endometriosis is a gynecological condition in which tissue similar to the uterine lining grows outside the uterus, often causing significant pain and hormonal disruption.
Research shows that women with endometriosis experience significantly higher rates of PMDD-related symptoms, including depression, anxiety, mood lability, and irritability, particularly during menstruation, compared to women without endometriosis (Szypłowska et al., 2023). Both conditions share underlying risk factors including chronic inflammation, estrogen sensitivity, and a dysregulated stress response (Her Mood Mentor, 2026). It is worth noting that the current consensus from the International Association for Premenstrual Disorders is that there is not yet confirmed evidence of a direct biological link between the two conditions. The overlap in symptoms, however, is undeniable (Medical News Today, 2024).
What I can share from my own clinical work is this. I worked with one client whose PMDD symptoms were entirely eliminated after she had surgery for endometriosis. That may sound extreme, and it is not something I would suggest as a first-line treatment for PMDD by any means. But it did seem to work almost instantaneously for her. That experience reinforced for me how intertwined these conditions can be for some women, and how important it is to consider the whole picture when someone is struggling with cyclical emotional symptoms.
Treatment: More Than Just Hormones
Because PMDD involves both a neurobiological vulnerability and, often, co-occurring anxiety or depression, the most effective treatment approaches tend to be multi-faceted.
Selective serotonin reuptake inhibitors (SSRIs) are considered a first-line medical treatment for PMDD and can be taken continuously or only during the luteal phase (APA, 2013). Combined oral contraceptives are also used to suppress ovulation and stabilize hormonal fluctuations.
On the psychological side, cognitive behavioral therapy (CBT) is the most researched intervention, helping you identify and shift the thought patterns that intensify premenstrual distress. Dialectical behavior therapy (DBT), which focuses on building distress tolerance and acceptance skills, may be especially well suited to PMDD given its chronic and cyclical nature (Oliveri et al., 2025). One clinical trial found that emotion-focused therapy (EFT) significantly reduced emotion regulation difficulties and PMDD symptom severity after 16 weeks of treatment (Dehnavi et al., 2024).
Research supports that targeting emotional regulation and psychological resilience through therapy may be just as important as managing the hormonal side, particularly if you also live with anxiety or depression (Border & Miller, 2025). Treating PMDD in isolation, without addressing comorbid mental health conditions, is unlikely to give you the full relief you deserve.
What This Means for You
If you have spent years wondering why your anxiety spikes before your period, or why your depressive episodes always seem to cluster around the same point in your cycle, you may be looking at the PMDD and anxiety connection firsthand. The research is finally catching up to what many women have been experiencing for years.
A few things worth bringing to your next appointment: ask your provider to screen for PMDD alongside any existing anxiety or depression treatment. There are assessments and trackers (on paper or via app) you can use to provide data to your therapist and other healthcare providers. If you already have a mental health diagnosis, it is good to find out whether your symptoms follow a cyclical pattern tied to your menstrual cycle. And if you have endometriosis, consider raising the question of whether your hormonal and emotional symptoms might be intersecting in ways that have not yet been fully addressed.
References
American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). https://doi.org/10.1176/appi.books.9780890425596
Border, G., & Miller, Y. D. (2025). Patient perspectives of healthcare for premenstrual dysphoric disorder in Australia: A mixed-methods study. Health Services Insights, 18. https://doi.org/10.1177/11786329251409981
Bengi, D., Strawbridge, R., & Drorian, M. (2025). A systematic review and meta-analysis on the comorbidity of premenstrual dysphoric disorder or premenstrual syndrome with mood disorders: Prevalence, clinical and neurobiological correlates. The British Journal of Psychiatry. https://doi.org/10.1192/bjp.2025.133
Bücklein-Ehlers, E., Dubol, M., Derntl, B. et al. Personality and cortical architecture in premenstrual dysphoric disorder. Arch Womens Ment Health 29, 48 (2026). https://doi.org/10.1007/s00737-026-01677-3
Dehnavi, S.I., Mortazavi, S.S., Ramezani, M.A. et al. (2024). Emotion-focused therapy for women with premenstrual dysphoric disorder: a randomized clinical controlled trial. BMC Psychiatry 24, 501. https://doi.org/10.1186/s12888-024-05681-8
Her Mood Mentor. (2025, November 4). Endometriosis & PMDD: A holistic path. https://hermoodmentor.com/endometriosis-and-pmdd/
Lambert, E., Hunter, M., Cocker, H., Gurvich, C., & Chalder, T. (2025). Emotion regulation in premenstrual dysphoric disorder and premenstrual syndrome: A systematic review. BMC Psychology, 13, 1289. https://doi.org/10.1186/s40359-025-03587-y
Medical News Today. (2024). PMDD and endometriosis: What is the link? https://www.medicalnewstoday.com/articles/pmdd-and-endometriosis
Oliveri, A., Muir, S., Mu, E., & Kulkarni, J. (2025). Advancing psychological interventions for premenstrual dysphoric disorder: A dialectical behaviour therapy informed treatment model. Australian and New Zealand Journal of Psychiatry. https://doi.org/10.1177/00048674251348370
Szypłowska, M., Tarkowski, R., & Kułak, K. (2023). The impact of endometriosis on depressive and anxiety symptoms and quality of life: A systematic review. Frontiers in Public Health, 11, 1230303. https://doi.org/10.3389/fpubh.2023.1230303
Yen, J.-Y., Lin, P.-C., Huang, M.-F., Chou, W.-P., Long, C.-Y., & Ko, C.-H. (2020). Association between generalized anxiety disorder and premenstrual dysphoric disorder in a diagnostic interviewing study. International Journal of Environmental Research and Public Health, 17(3), 988. https://doi.org/10.3390/ijerph17030988
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