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Major depressive disorder: what the research says

371 studies on major depressive disorder in PMS and PMDD, each explained in plain English. 25 of them use the strongest designs: randomised trials and systematic reviews.

Survey study 100Review 55Cohort study 47Randomised trial 46Study 41Case-control study 23
Cohort study, 2026

What genetic factors are linked to premenstrual symptoms?

One genetic location on chromosome 12 was clearly associated with PMS. The genetic factors linked to PMS are also linked to depression.

Systematic review, 2026

How often do mood disorders and PMS or PMDD occur together?

Very often. Between 42% and 49% of women have both PMS or PMDD and a mood disorder at the same time, depending on which condition was diagnosed first.

Randomised trial, 2025

Does taking an antidepressant only during the second half of your cycle reduce anger and aggression in PMDD?

Yes. Taking escitalopram 20 mg during the second half of the menstrual cycle significantly reduced PMDD symptoms including irritability and anger, and reduced aggressive responses to provocation.

Survey study, 2025

Is premenstrual syndrome inherited from your family?

A study found that genes play a small role in who gets PMS symptoms. One genetic change was linked to PMS, and this same genetic pattern is also linked to depression.

Review, 2024

What are the most effective treatments for PMDD?

According to this literature review, SSRIs (antidepressants) and cognitive-behavioral therapy are the most commonly recommended first-line treatments. Birth control pills with drospirenone are also effective.

Systematic review, 2024

How common is PMDD?

PMDD affects 3.2% of women when diagnosed with confirmed criteria and 7.7% when using provisional diagnosis. This means PMDD is less common than some estimates suggest.

Cohort study, 2023

Are PMS symptoms linked to genetic factors for psychiatric disorders?

Yes. Women with PMS were more likely to have genetic factors for depression, bipolar disorder, ADHD, schizophrenia, and autism spectrum disorder. This was a large, well-designed study, so we can be confident in these findings.

Cohort study, 2023

Does PMDD increase the risk of depression or bipolar disorder later?

Yes. Women with PMDD were 2.58 times more likely to develop depression and 2.50 times more likely to develop bipolar disorder compared to women without PMDD. These conditions also developed earlier in women with PMDD.

Systematic review, 2023

Is PMDD linked to depression?

PMDD and depression are strongly linked. Nearly all studies found that people with PMDD were more likely to have depression, and people with depression were more likely to have PMDD.

Systematic review, 2022

What increases the risk of depression after childbirth?

Premenstrual syndrome is the strongest known risk factor for postpartum depression, nearly doubling the risk. Violent experiences and unintended pregnancy are also strong risk factors.

Systematic review, 2021

Are there hormone changes that could explain PMDD or depression in women?

Yes, women with PMDD have lower estrogen levels during the luteal phase of their cycle, and women with depression have lower testosterone levels. These hormonal differences may contribute to their symptoms.

Survey study, 2011

Is premenstrual syndrome related to major depression?

Yes. Women with moderate to severe PMS are significantly more likely to have depression (11.3% to 24.6% depending on PMS severity). Women with both conditions are more severely impaired than those with either alone.

Non-randomised trial, 2008

Can the Sheehan Disability Scale measure whether treatments work?

Yes. The scale was able to tell the difference between treatments that worked and treatments that didn't in clinical trials.

Randomised trial, 2004

Does dosing sertraline continuously or just before the period work better for severe PMS?

Both dosing schedules worked about equally well, significantly better than placebo.

Randomised trial, 2004

What medications work for PMDD when taken only during the second half of the menstrual cycle?

SSRIs including sertraline, fluoxetine, and paroxetine are the most proven treatment for PMDD when taken during the luteal phase. Symptom reduction is similar to taking them continuously, but with less medication exposure and lower costs.

Cohort study, 2004

Do women with PMS have worse menopausal symptoms?

Yes, women with PMS are significantly more likely to experience hot flushes, depression, poor sleep, and low libido during menopause. This large five-year study provides strong evidence for this connection.

Review, 2004

How should doctors diagnose and treat PMS and PMDD?

Doctors can now diagnose these conditions using specific prospective symptom tracking and have several evidence-based treatments. Antidepressants that increase serotonin, especially when taken only during the luteal phase, work best for severe symptoms.

Randomised trial, 2000

How should PMDD be diagnosed and treated?

PMDD is a distinct condition from regular PMS, characterized by mood symptoms like irritability and anger. SSRIs taken daily or only during the menstrual cycle are first-line treatment and work very well with minimal side effects.

Randomised trial, 2000

Does sertraline improve how women with PMDD feel and function?

Yes. Sertraline was clearly better than placebo at improving how women with PMDD functioned and their quality of life, and improvements appeared by the second month of treatment.

Randomised trial, 1999

Is sertraline more effective than other antidepressants for severe PMS or PMDD?

Yes. Sertraline was significantly more effective than both placebo and desipramine at reducing severe PMS and PMDD symptoms, with 65% of women improving by more than 50%.

Randomised trial, 1997

Does sertraline reduce PMDD symptoms and improve women's ability to function?

Yes, sertraline significantly reduced symptoms and improved functioning. 62% of the sertraline group had much or very much improvement compared to 34% of the placebo group.

Randomised trial, 1996

Does sertraline help PMDD symptoms?

Yes. In this study, 68% of women taking sertraline had much or very much improvement, compared to 40% taking placebo. This strongly suggests sertraline works for severe premenstrual symptoms.

Randomised trial, 1995

Does spironolactone help PMS symptoms?

Yes. Spironolactone significantly reduced mood symptoms like irritability and depression, and physical symptoms like breast tenderness and bloating, compared to placebo.

Review, 1992

Is PMS really caused by hormones?

The evidence that PMS is caused by hormones is unclear. Psychological and individualized treatments may work better than hormone treatments for PMS.

Review, 1989

Are mental health conditions linked to the reproductive cycle?

Psychiatric disorders like PMS and postpartum depression are linked to the menstrual cycle and pregnancy. But research on PMS is still early and many questions remain.

Case-control study, 2026

Does PMS increase the risk of depression after childbirth in women with a history of depression?

Yes. Women with PMS had a 45.5% rate of postpartum depression compared to 22.5% without PMS, making it 2.87 times more likely.

Survey study, 2026

Are PMDD and ADHD linked in women with bipolar disorder?

In women with bipolar disorder, 44.2% have PMDD, and those with PMDD also have higher ADHD symptom scores. Genetic risk for ADHD was linked to both PMDD severity and ADHD symptoms.

Study, 2026

Do anxiety and depression get worse before your period if you already have a mental health condition?

Yes. If you have depression, bipolar disorder, or other mental health conditions, symptoms often worsen before your period due to hormone changes. This can affect how well treatments work.

Survey study, 2026

Are women who feel mood changes from birth control pills at higher risk for PMDD and postpartum depression?

Yes. Women who reported mood problems from the pill were 3.78 times more likely to have PMDD and 1.66 times more likely to have depression after childbirth, though genetic factors and depression history also matter.

Study, 2026

What are premenstrual syndrome and premenstrual dysphoric disorder?

Between 5% and 8% of women have moderate-to-severe symptoms that cause significant problems with work, relationships, and daily life. These are called PMS or PMDD. PMDD is the most severe form.

Study, 2026

What treatments work for PMDD?

SSRIs (a type of antidepressant) and certain types of birth control are the main first-line treatments. New treatments targeting brain chemistry are being developed.

Systematic review, 2026

Are women with PMDD more likely to have suicidal thoughts or attempts?

Yes. People with PMDD show clearly higher rates of suicidal thoughts, planning and attempts than would be expected, though no study yet has tested treatments to reduce this risk.

Review, 2026

Do PMDD, postpartum depression and perimenopausal depression have the same genetic causes?

It's unclear. Researchers have looked at several of the same genes in all three conditions but found inconsistent results. Most genetic research has focused on postpartum depression, not PMDD.

Case-control study, 2025

Is the stress hormone system different in women with PMDD?

Women with PMDD had significantly lower cortisol levels throughout the menstrual cycle compared to controls (p=0.0004 in follicular phase, p=0.0007 in luteal phase), suggesting PMDD may have a different mechanism than other depression types.

Study, 2025

What brain changes do women with PMS and PMDD have?

Brain imaging shows that women with PMS and PMDD have structural and functional differences in their limbic system (the emotion center of the brain), particularly in three areas: the amygdala, hypothalamus, and hippocampus. These differences may help explain the symptoms.

Randomised trial, 2025

Does blocking progesterone change brain structure in people with PMDD?

No. A progesterone-blocking medication did not change white matter structure in the brain compared to placebo, though some secondary analyses showed differences that need further study.

Case-control study, 2024

How does PMDD affect how women understand and feel what others are experiencing?

Women with PMDD show unusual brain patterns related to empathy during the luteal phase: they have stronger emotional responses but have more difficulty understanding other people's perspectives. This may explain the severe social difficulties that women with PMDD report during this phase.

Case-control study, 2024

Are hormone and growth factor levels different in women with PMDD during the luteal phase?

Yes. Women with PMDD have higher progesterone and cortisol during the late luteal phase, and these are linked to worse symptoms. Growth factors that may protect are lower in women with PMDD.

Study, 2024

Do depressive symptoms change across the menstrual cycle?

Yes, depressive symptoms changed significantly across the menstrual cycle, and the amount of change differed between women and between individual symptoms. Measuring symptoms in the afternoon gave the most reliable results.

Survey study, 2024

How common are PMS and PMDD in young Turkish women and what factors are linked to them?

PMS affects about 49% of young Turkish women and PMDD about 48%. Blood type B was far more likely to have PMS than blood type A. Lower physical activity, longer menstrual cycles, more caffeine, and depression were also linked to PMDD.

Cohort study, 2023

Are premenstrual disorders linked to depression, anxiety, and self-harm in teenage girls?

Yes. Girls with premenstrual disorders have 4 to 7 times higher rates of depression, anxiety, self-injury, and suicide risk compared to boys and girls without the disorder. This suggests premenstrual disorders may cause much of the difference in mental health problems between teenage boys and girls.

Systematic review, 2022

Does having PMDD increase the risk of depression during pregnancy or after birth?

Yes. Women with PMDD have higher risk of depression after giving birth. Evidence for depression during pregnancy is less clear from current studies.

Survey study, 2022

Do women with PMDD have different brain function at different cycle phases?

Yes. Women with PMDD have worse focus and decision-making during the week before their period, and they have more difficulty managing emotions throughout the cycle.

Randomised trial, 2022

Does having an irregular menstrual cycle before pregnancy increase depression during pregnancy?

Yes, women with irregular cycles before pregnancy were more likely to have depression during pregnancy. Cycle length itself did not predict depression, only how consistent the cycles were.

Cohort study, 2022

What are PMS and PMDD and how should they be diagnosed and treated?

PMS involves 1-4 symptoms or 5 or more physical or behavioral symptoms. PMDD requires 5 or more symptoms with at least one mood symptom like irritability or mood swings. Treatments include exercise, cognitive behavioral therapy, and medications like SSRIs and hormonal contraceptives.

Cohort study, 2022

How common are suicidal thoughts and self-harm in people with PMDD?

Suicidal thoughts, planning, and attempts are very common in people with PMDD. About 72% report lifetime suicidal thoughts, 49% report planning, and 34% report attempts.

Survey study, 2021

Is premenstrual dysphoric disorder linked to suicide risk in women with mood disorders?

Women with premenstrual dysphoric disorder who have depression or bipolar disorder are 3.46 times more likely to have attempted suicide. However, this study only included women who already have mood disorders.

Case-control study, 2019

Do negative thinking patterns increase the risk of PMS or PMDD?

Yes. Women with PMS and PMDD have more negative thinking patterns and process information differently than other women, especially during the luteal phase.

Review, 2019

How do brain changes during reproductive transitions cause depression in women?

A review of brain imaging studies found that depression related to reproductive cycle changes involves different brain activation patterns than typical major depression. Understanding these differences might help develop better treatments, though the causes remain unclear.

Study, 2018

How cost-effective is medication for PMDD?

Medication for PMDD improved quality of life and was cost-effective. The choice between escitalopram and sertraline depends on how much improvement is valued.

Review, 2018

Do sex hormones cause mood disorders in women at certain times of the cycle?

Evidence suggests women with reproductive mood disorders like PMDD have abnormal sensitivity to normal hormone changes rather than abnormal hormone levels. Normal hormone fluctuations trigger mood problems in some women but not others.

Lab study, 2018

How does depression affect menstrual function and fertility in women?

Women with depression are more likely to have PMS and irregular periods. Depression also appears linked to fewer pregnancies and children. Depression starting at puberty has the worst effects on menstrual and reproductive health.

Randomised trial, 2017

Can couples therapy help with severe PMS or PMDD more than individual therapy alone?

Yes. Both one-to-one and couple-based CBT reduced premenstrual symptoms and distress compared to a wait-list control, and couple-based CBT added extra benefits for coping skills and relationship quality. This comes from a moderate-sized randomised trial, so results are promising but not definitive.

Survey study, 2016

Do women with postpartum depression have different symptoms than women with other depression?

Yes. Women with postpartum depression were more likely to report loss of sexual interest and mood changes before their period compared to women with other types of depression.

Cohort study, 2015

How common are PMS and PMDD in young women, and are they connected to depression?

Two-thirds of young women have some PMS symptoms, about 1 in 10 meet the criteria for PMDD, and women with worse PMS or PMDD are significantly more likely to have depression.

Cohort study, 2015

What factors predict anxiety and depression during pregnancy and after birth?

Women are at high risk for anxiety and depression around pregnancy and birth, especially those with prior mental health problems or poor social support, though symptoms vary widely between women.

Study, 2014

Do women with PMDD lose the normal ability to control pain with emotions?

No. Women with PMDD and control women both showed the same pattern: pain was strongest during negative emotions and weakest during positive emotions, regardless of cycle phase.

Survey study, 2014

Do women whose depression started early experience more premenstrual symptoms?

Yes. Women with depression that started at an earlier age were more likely to have premenstrual symptoms. Because data was collected by recall, we cannot be sure about timing or whether premenstrual symptoms came before or after the depression.

Review, 2014

Are mental health problems linked to gynecological conditions like PMS and PMDD?

Yes. Anxiety and depression are common with PMS and PMDD and are frequently undetected and untreated, affecting women's work, social and personal lives.

Guideline, 2014

What antidepressant should doctors use to treat depression and premenstrual dysphoric disorder?

According to expert consensus, a single antidepressant, usually an SSRI or SNRI, is recommended as first-line treatment for most types of depression, including premenstrual dysphoric disorder.