For many women with ADHD, symptoms are not the same from one week to the next. Several studies find them stronger around menstruation. The role of estrogen is a serious lead, but it is still partly a hypothesis.
- What has been observed: in small studies with daily tracking, symptoms vary across the cycle, often peaking during or just before the period.
- What is assumed: falling estrogen may act on dopamine, an idea that rests mainly on animal research.
- Pregnancy and menopause: data are scarce and sometimes contradictory.
- In practice: track your symptoms alongside your cycle and show the record to your doctor.
The menstrual cycle in brief
A cycle starts on the first day of the period. During the follicular phase, estrogen rises until ovulation. Then comes the luteal phase: progesterone rises, then both hormones drop in the days before the next period. A theory published in 2024 focuses on the moments when estrogen falls quickly: around ovulation and around menstruation.
What studies of the cycle show
Kentucky, 2018. The University of Kentucky followed 32 young women with regular cycles, drawn from the general population. For 35 days, they gave a saliva sample each morning to measure their hormones and filled in an ADHD symptom checklist each evening. When estradiol (the main estrogen) fell while progesterone or testosterone rose, symptoms were higher the next day, especially in the most impulsive women. Two moments stood out: the start of the period and the time just after ovulation.
New York, 2025. According to a pilot study published online on 26 December 2025 in the Journal of Attention Disorders, 30 women treated for ADHD with amphetamine salts completed 35 daily questionnaires. Their symptoms were strongest during menstruation and mildest just after (the mid-follicular phase). The more mood worsened, the more they increased. According to PsyPost's report, inattention on its own did not change significantly, hyperactivity-impulsivity showed only a trend, and medication doses stayed stable. Limits: small sample, self-reported data, phases estimated from bleeding, no hormone measurement.
Results do not always agree. In January 2025, Scientific American described the follow-up of 97 college students, nearly all diagnosed with ADHD, by the team of psychologist Michelle Martel (Kentucky): symptoms were stronger just before and at the start of the period, and somewhat around ovulation. These results had been presented at a conference; as of 3 November 2026, we found no peer-reviewed paper publishing them as such. In August 2025 the same team published an analysis of 103 women aged 18 to 25 followed for one month (we do not know whether they were the same participants): changes depended on impulsivity levels, the mid-luteal phase seemed rather protective for inattention, and the post-ovulatory period was linked to more hyperactivity.
What women report. In an online survey by Monash University (Australia) of 600 women diagnosed with ADHD, 88.6% of those who still had cycles and were not on hormonal treatment said their symptoms changed across the cycle, most often for the worse in the luteal phase. Two Swedish interview studies (10 and 14 women) point the same way: stronger symptoms in the luteal phase, and the week before the period experienced as the hardest. These accounts do not prove a cause.
The reviews. A 2025 systematic review included only 11 studies, often small and heterogeneous. A scoping review published in June 2026 found 20. For both, the data suggest a link between hormones and symptoms, but remain preliminary.
Estrogen and dopamine: established or assumed?
Dopamine, a chemical messenger in the brain, is widely studied in ADHD. In animals, estrogen stimulates dopamine production and slows its reuptake and breakdown. In women, imaging studies suggest that estradiol strengthens the dopamine circuits linking the prefrontal cortex and the striatum, regions that are key for attention. The effect may not be linear: there may be an optimal range, neither too low nor too high.
But studies of the cycle in women with ADHD did not measure dopamine directly, a 2025 review points out. The mechanism therefore remains a plausible hypothesis, not a proven fact. Another lead involves allopregnanolone, a progesterone by-product to which some women may be more sensitive. And ADHD is not simply "low dopamine", as our article on this myth explains.
ADHD and premenstrual dysphoric disorder
Premenstrual dysphoric disorder (PMDD) is a severe form of premenstrual syndrome: very low mood, irritability or anxiety in the days before the period. In a survey by UK researchers published in June 2025 of 715 women aged 18 to 34, probable PMDD affected 31.4% of those who reported an ADHD diagnosis and 41.1% of those with high ADHD symptoms, compared with 9.8% of the group without ADHD. The risk was highest when depression or anxiety was also present. These are "probable" cases identified by questionnaire, not confirmed diagnoses.
In Swedish registers (more than 3.6 million women), the link runs both ways: women with a premenstrual disorder more often had an earlier ADHD diagnosis, and were also more often diagnosed with ADHD later on. An association does not tell us which causes which.
Pregnancy, postpartum, menopause: still thin evidence
Pregnancy. The 2025 systematic review found only one study of ADHD symptoms during pregnancy, with 25 participants. No rule can be drawn from it.
After childbirth. In the Monash University survey, 70.4% of the respondents concerned said they had noticed a worsening after giving birth. These are recollections, not measurements.
Perimenopause and menopause. Estrogen fluctuates, then falls for good. The 2025 review found no study of ADHD during menopause. Since then, results have diverged:
- in Iceland, among 5,392 women, 54.2% of those who reported ADHD had severe perimenopausal symptoms, compared with 30.1% of the others, with the largest score gap between ages 35 and 39. The outcome studied was the severity of perimenopausal symptoms, not changes in ADHD symptoms;
- in the UK, among 656 women aged 45 to 60, an ADHD diagnosis was not linked to more menopausal complaints after correction for multiple testing, although across all participants higher ADHD symptoms went with more complaints;
- in the Monash University survey, 97.5% of the respondents concerned said they had noticed a worsening at menopause, but current scores on the ASRS scale were similar whatever the life stage.
Menopausal "brain fog" looks a lot like ADHD inattention, which makes the two hard to tell apart. Finally, according to a 2026 review, there is no randomised controlled trial of ADHD treatments in perimenopausal or postmenopausal women.
In practice: track your symptoms with your cycle
A simple record will help you see more clearly.
- Each evening, note the day of your cycle (day 1 = first day of your period) and a score from 0 to 3 for focus, organisation, impulsivity, mood and sleep.
- Keep the record for two or three cycles. A single cycle can be misleading.
- Add context: contraception, stress, illness, taking your treatment as prescribed.
- Bring it to your appointment (GP, psychiatrist, gynaecologist or midwife). It helps spot possible PMDD or depression.
Some teams are studying cycle-based adjustments of treatment, but the data are limited to a single small case series of 9 women. This is not a recommendation: never change your treatment on your own, talk to your doctor. If your mood becomes very dark before your period, or you have thoughts of suicide, do not wait: in the US call or text 988, in the UK and Ireland Samaritans 116 123, elsewhere your local emergency number.
The ASRS self-assessment questionnaire takes a few minutes. It does not give a diagnosis. Since your symptoms can vary, note where you are in your cycle when you fill it in. To understand why ADHD often goes unnoticed in women, read our article on late diagnosis and the signs of ADHD in women.
Frequently asked questions
Is ADHD worse during your period?
For some women, according to several small studies: symptoms are often stronger during or just before the period. But patterns vary, and some studies also find an increase after ovulation.
Does estrogen boost dopamine?
This has been shown in animals and is suggested by imaging in women. In ADHD, the link between falling estrogen, dopamine and symptoms remains a hypothesis.
Should treatment be adjusted to the cycle?
No protocol has been validated by controlled trials. If you notice a regular pattern, talk to your doctor. Never change doses yourself.
Does menopause make ADHD worse?
Many women report it, but studies are few and disagree, and the symptoms of the two overlap.
References: Zaritsky R., Reed S. C., Evans S. M. (2026). Changes in ADHD Symptoms and Mood Across the Menstrual Cycle in Females Treated With Stimulants: A Pilot Study. Journal of Attention Disorders, 30(3), 329-341. Pilot study, 30 participants, 35 daily questionnaires (online 26/12/2025). | PsyPost, report on the study by Zaritsky et al. (25/10/2026). | Roberts B., Eisenlohr-Moul T., Martel M. M. (2018). Reproductive steroids and ADHD symptoms across the menstrual cycle. Psychoneuroendocrinology, 88, 105-114. 35-day daily follow-up, 32 women, saliva hormone assays. | Martel M. M., Goh P. K., Eng A. G. et al. (2025). Impulsivity Moderates End-of-Cycle but not Midcycle Effects on Executive Function and ADHD Symptoms. Journal of Psychopathology and Behavioral Assessment, 47(3), 67. 103 women aged 18 to 25, one cycle. | Harper K. (8 January 2025). How Menstrual Periods Can Affect ADHD Symptoms and Treatment. Scientific American (conference results, unpublished). | Eng A. G., Nirjar U., Elkins A. R. et al. (2024). Attention-deficit/hyperactivity disorder and the menstrual cycle: Theory and evidence. Hormones and Behavior, 158, 105466. Theoretical review. | Osianlis E., Thomas E. H. X., Jenkins L. M., Gurvich C. (2025). ADHD and Sex Hormones in Females: A Systematic Review. Journal of Attention Disorders, 29(9), 706-723. Systematic review, 11 studies. | Kennedy G., Baran-Goldwax M., Lippé S. (2026). Menstrual health and Attention-Deficit/Hyperactivity Disorder (ADHD) symptoms: A scoping review. Women's Health, 22, 17455057261460285. Scoping review, 20 studies. | Wynchank D., Sutrisno R. M. G. T. M. F., van Andel E., Kooij J. J. S. (2025). Menstrual Cycle-Related Hormonal Fluctuations in ADHD: Effect on Cognitive Functioning, A Narrative Review. Journal of Clinical Medicine, 15(1), 121. Narrative review, 29 studies. | Osianlis E., Thomas E. H. X., Li Q. et al. (2026). ADHD in females: Survey findings on symptoms across hormonal life stages. Journal of Psychiatric Research, 193, 208-215. Cross-sectional online survey, 600 participants. | Bürger I., Erlandsson K., Borneskog C. (2024). Perceived associations between the menstrual cycle and Attention Deficit Hyperactivity Disorder (ADHD): A qualitative interview study exploring lived experiences. Sexual & Reproductive Healthcare, 40, 100975. Qualitative study, 10 interviews. | McTaggart J., Thorell L. B., Borg Skoglund C. et al. (2026). "Controlled by Female Hormones": A Qualitative Interview Study of Swedish Women's Experiences of Gender-Specific Aspects of Life With ADHD. Journal of Attention Disorders, 30(6), 795-806. Qualitative study, 14 interviews. | Broughton T., Lambert E., Wertz J., Agnew-Blais J. (2025). Increased risk of provisional premenstrual dysphoric disorder (PMDD) among females with attention-deficit hyperactivity disorder (ADHD): cross-sectional survey study. British Journal of Psychiatry, 226(6), 410-417. Cross-sectional survey, 715 participants. | Zhou J., Muse Z., Bränn E. et al. (2026). Bidirectional Association Between Premenstrual Disorders and Psychiatric Disorders. JAMA Network Open, 9(5), e2611765. Swedish nationwide cohort, 3,630,028 women (abstract corrected by an erratum in June 2026). | Jakobsdóttir Smári U., Valdimarsdottir U. A., Wynchank D. et al. (2025). Perimenopausal symptoms in women with and without ADHD: A population-based cohort study. European Psychiatry, 68(1), e133. Icelandic cohort, 535 women with ADHD and 4,857 without. | Chapman L., Gupta K., Hunter M. S., Dommett E. J. (2025). Examining the Link Between ADHD Symptoms and Menopausal Experiences. Journal of Attention Disorders, 29(14), 1263-1277. Cross-sectional study, 656 women aged 45 to 60. | Wynchank D., Kooij S. (2026). Pharmacological Management of ADHD in Women Across Perimenopause, Menopause and Post-Menopause. Drugs & Aging, 43(5), 385-395. Narrative review. | de Jong M., Wynchank D. S. M. R., van Andel E. et al. (2023). Female-specific pharmacotherapy in ADHD: premenstrual adjustment of psychostimulant dosage. Frontiers in Psychiatry, 14, 1306194. Case series, 9 women.