PMDS

What is PMDD and how does it differ from PMS?

Premenstrual dysphoric disorder (PMDD) – also internationally known as Premenstrual Dysphoric Disorder (PMDD) – is a severe, neurobiologically based cycle disorder that causes psychological and partly physical symptoms. It typically occurs in the luteal phase, the second half of the cycle after ovulation, and ends with the onset of menstruation or a few days afterward.

While PMS (premenstrual syndrome) often includes mild to moderate symptoms – such as breast tenderness, mood swings, water retention, or irritability – PMDD is a distinct, medically recognized condition with a clearly defined clinical picture. Since the introduction of DSM-5 (Diagnostic and Statistical Manual of Mental Disorders) and ICD-11 (International Classification of Diseases), PMDD has been classified as a disorder requiring treatment.

Comparison of PMS and PMDD

Summary

PMDD is more than "just" PMS: it is a severe, cycle-dependent affective disorder that is mentally very distressing and often leads to significant impairments in daily life. While PMS is familiar to many women and can usually be managed with non-medical measures, PMDD often requires specialized medical and psychotherapeutic treatment.

How common is premenstrual dysphoric disorder?

Premenstrual dysphoric disorder (PMDD) is a much less frequently diagnosed but clinically significant form of cycle-dependent complaints. It mainly affects women of childbearing age and is considered the most severe form of premenstrual syndrome (PMS). Although the disorder has only recently been more thoroughly studied and diagnostically recorded, reliable epidemiological data now exist.

Prevalence in numbers

These figures are based on a combination of clinical studies, epidemiological surveys, and experience from gynecological and psychosomatic practices. The exact prevalence varies depending on methodology and the definition of diagnostic criteria.

Reasons for the high number of unreported cases

The actual number of affected women could be significantly higher because PMDD is often:

• is not recognized,

• is misdiagnosed (e.g., as a depressive episode),

• or is not reported by those affected – out of shame, ignorance, or because the symptoms are dismissed as "normal."

Especially in countries where ICD-11 has not yet been widely implemented or where menstrual health is taboo, PMDD often remains unrecognized and untreated.

What causes PMDD?

Premenstrual dysphoric disorder (PMDD) is not imagination, not a character weakness, and not purely a psychological reaction to stress. It is a neurobiologically based, cycle-dependent affective disorder whose causes arise from a complex interplay of genetic, hormonal, and neurological factors. While the exact mechanisms are not yet fully understood, modern research provides important insights into its development.

The main causes of PMDD at a glance

Neurobiological insights: What happens in the brain?

Recent studies, such as those from the Max Planck Institute Leipzig, show that women with PMDS have an increased density of serotonin transporters in the brain during the second half of the cycle. This results in less serotonin being available at synapses for signal transmission, promoting depressive moods, irritability, and emotional instability.

In addition, the central nervous system of affected women is hypersensitive to allopregnanolone, a neuroactive metabolite of the hormone progesterone that acts via GABA-A receptors. This dysregulation can cause anxiety, loss of control, and irritability – typical PMDS symptoms.

PMDS is not a hormonal disorder – but a disorder of hormone processing

A crucial point: In PMDS, hormone levels (e.g., estrogen, progesterone) are usually within the normal range in laboratory tests. The cause is not a deficiency or excess but an abnormal brain response to these natural fluctuations.

What role does the cycle play in PMDS?

The menstrual cycle phases are the central trigger for the symptoms of premenstrual dysphoric disorder (PMDS). PMDS is strictly cycle-dependent – meaning: the symptoms regularly occur in the second half of the cycle, that is, after ovulation until a few days after the onset of menstruation. After that, they usually subside abruptly until the next cycle begins. This recurring pattern is not only diagnostically indicative but also clearly distinguishes PMDS from other mental illnesses.

Cycle phases and PMDS symptoms

Why does the brain react so sensitively to the cycle?

Women with PMDS do not react to abnormal hormone levels but to normal hormonal fluctuations in an exaggerated way. In particular:

• Allopregnanolone, a breakdown product of progesterone, paradoxically acts negatively on the GABA-A receptor in sensitive women, promoting anxiety and restlessness.

• Estrogen influences serotonin metabolism. The drop in estrogen before the period can lead to a functional serotonin deficiency – with depressive consequences.

• In the luteal phase (approx. day 14–28 of the cycle), this leads to a neurochemical imbalance that triggers PMDS symptoms.

Special feature: Sudden improvement after cycle change

A diagnostic feature of PMDD is the sudden psychological stabilization after the start of menstruation. Many affected describe this as a "clear head," "like waking up," "finally myself again" – which makes the discrepancy between the cycle phases particularly clear.

What symptoms are typical for PMDD?

Premenstrual dysphoric disorder (PMDD) is characterized by a variety of severe, cycle-dependent symptoms – mainly psychological in nature, but also with physical accompanying symptoms. They regularly occur in the second half of the cycle, worsen until shortly before menstruation, and then usually subside abruptly.

Unlike "classic" PMS, where physical complaints such as breast tenderness or water retention are predominant, PMDD is dominated by emotional, affective, and behavioral symptoms that can significantly impair daily life, relationships, and work ability.

Overview of typical PMDD symptoms according to DSM-5

Diagnostic criteria: How many symptoms must be present?

According to DSM-5, for the diagnosis of PMDD:

• at least 5 symptoms from the above list regularly occur,

• at least one of which is from the following areas depressive mood, Irritability, anxiety or emotional instability originate,

• specifically in the week before menstruation, with improvement after the start of bleeding.

These complaints must have been documented in more than two cycles (e.g., through a cycle diary) and lead to a significant impairment of social and professional life.

Special notes

• The severity of symptoms can vary from cycle to cycle and is often worsened by stress, lack of sleep, or hormonal changes (e.g., after childbirth, after stopping the pill).

• Those affected often report a feeling of not being themselves – the "Dr. Jekyll & Mr. Hyde" phenomenon is often used as an apt description.

• In severe cases, there may be emotional loss of control, such as aggressive behavior towards partners or children.

How is PMDS diagnosed?

The diagnosis of premenstrual dysphoric disorder (PMDS) requires care, patience, and systematic observation. Unlike many physical illnesses, PMDS cannot be detected by a blood test or imaging procedures. Instead, the diagnosis is based on a defined symptom catalog and the temporal relationship with the menstrual cycle.

Official diagnostic criteria according to DSM-5

The currently applicable diagnostic criteria come from the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, 5th edition). These are recognized worldwide as the standard for identifying mental and psychosomatic disorders. In the ICD-11, the international diagnostic classification system valid from 2022, PMDS is also recorded for the first time with its own code.

The most important tool: The cycle diary

The diagnosis of PMDS cannot be made retrospectively or based on intuition. A cycle diary is absolutely necessary. It documents daily over at least two to three months:

• Mood
• Physical symptoms
• Sleep, energy level, appetite
• Impact on work, relationships, leisure

Special PMDS cycle diaries are available as PDFs or apps – especially recommended are structured templates from gynecological psychosomatics.

Differentiation from other disorders

A major diagnostic challenge lies in differentiating from other mental illnesses, especially:

• Depressions or Dysthymias
• Anxiety disorders
• Borderline Personality Disorder
• Premenstrual Exacerbation (PME) – Worsening of an existing disorder in the luteal phase

Decisive criterion: In PMDS, there is a complete or nearly complete remission of symptoms during the follicular phase (i.e., after menstruation) – whereas in other disorders, symptoms persist.

How does PMDS progress over the years?

Premenstrual dysphoric disorder (PMDS) shows a highly variable individual course closely linked to hormonal changes, life phases, and psychosocial stress. While some women develop initial cycle-dependent symptoms shortly after menarche, manifest PMDS often appears years later – often after significant hormonal changes such as pregnancy, childbirth, stopping the pill, or during perimenopause.

Typical course in the life cycle

Influencing factors on the course

The course of PMDS is not controlled solely biologically. Psychosocial factors, such as chronic stress, lack of recovery time, excessive responsibility (e.g., due to motherhood and work), lack of self-care, or stressful relationships, also play a role in symptom intensification.

Additionally, individual physical conditions such as:

• genetic predisposition
• sensitivity to allopregnanolone
• imbalances in serotonin levels
• previous mental illnesses (e.g., depression, trauma)

Prognosis: Chronic condition or temporary disorder?

PMDS is not necessarily a permanent condition. Many women report significant improvement or complete remission:

• after consistent treatment (e.g., antidepressants, extended-cycle pill, behavioral therapy)
• due to changes in lifestyle, self-care, and stress management
• after hormonal changes during menopause

In some cases, however, a flare-up can occur, for example with:

• high professional or family stress
• insufficient therapy adherence
• lack of cycle observation or self-regulation
  
  

Cycle management as a long-term strategy

Many affected individuals develop an individual understanding of symptoms and self-management over time, allowing them to consciously influence the course of their PMDS – for example through:

• Proactive cycle planning
• Targeted breaks or reduced workload in the luteal phase
• Intermittent or flexible medication
• Proven coping strategies (e.g., yoga, mindfulness, therapy)

What treatment options are available for PMDS?

The treatment of premenstrual dysphoric disorder (PMDS) requires an individually tailored, multimodal therapy concept that considers both the neurobiological cause and psychosocial stress factors. The goal is to alleviate the pronounced symptoms in the second half of the cycle and sustainably improve the quality of life of those affected.

Since PMDS is not a classic hormonal disorder in its cause but an abnormal brain response to normal hormonal fluctuations, the treatment differs from conventional PMS therapy.

Overview of treatment options for PMDS

SSRIs for PMDS – continuous or intermittent?

A particularly effective therapeutic approach is SSRIs (selective serotonin reuptake inhibitors). They improve serotonin signaling in the brain and thus counteract depressive and affective symptoms. Studies show:

• continuous administration throughout the entire cycle is especially effective in the acute phase,
• Upon stabilization, it can be switched to intermittent intake (only luteal phase),
• The onset of effect often occurs faster than with classic depression – sometimes within a few days.
  
  

When is hormone therapy useful?

Taking hormonal contraceptives in a long cycle, i.e., without a break, can balance cycle-related fluctuations for many women and thus improve PMDS symptoms. The careful selection of the preparation considering:

• contraindications (e.g., risk of thrombosis)
• family history
• age & life phase
• individual tolerance

Holistic measures & self-help

In addition to medical treatments, many women also benefit from:

• gentle exercise (e.g., walks, yoga)
• mindful nutrition (blood sugar stabilizing, anti-inflammatory)
• targeted self-care (e.g., rest phases in the luteal phase)
• Relief in everyday life through more conscious cycle planning
  
  

Does the pill help against PMDS?

Yes, the pill can be helpful for PMDS, but not for all affected and not in every form of use. Important: The pill helps not because it supplies hormones, but because – when used correctly – it suppresses the natural cycle and thus avoids the hormonal fluctuations responsible for the symptoms of premenstrual dysphoric disorder (PMDS).

Mode of action of the pill in PMDS

In women with PMDS, the brain reacts hypersensitively to hormonal fluctuations, especially to:

• the rise and fall of progesterone,
• the metabolite allopregnanolone,
• and the change in estrogen levels.

By taking hormonal contraceptives – especially combination preparations with estrogen and progestin – the cycle can be artificially stabilized or completely suppressed.

Use in the long cycle: more effective than the classic 21/7 rhythm

To keep hormonal fluctuations as low as possible, a long cycle intake is recommended for PMDS. This means: the pill is taken continuously without breaks, over several months, without a bleeding interval.

Study situation & practical experience

• Clinical studies show that pills containing drospirenone (e.g., with ethinylestradiol + drospirenone) have positive effects on mood and irritability.
• The pill does not work for all women – especially if the cause is more neurobiologically based.
• Some women reject hormones or have contraindications (e.g., migraine with aura, increased risk of thrombosis, smoking).

Advantages and limitations of the pill for PMDD

When are antidepressants used for PMDD?

Antidepressants are used for PMDD when psychological symptoms – such as depression, irritability, anger, or anxiety – are severe and other measures (e.g., lifestyle changes, hormone therapy) are insufficient. Mainly SSRIs (selective serotonin reuptake inhibitors) like fluoxetine, sertraline, or citalopram are used.

They can either:

• Can be taken continuously throughout the entire cycle (especially at the start of treatment), or
• Intermittently, meaning only in the second half of the cycle, which reduces side effects.
  
  

SSRIs often work faster for PMDD than for classic depression – sometimes within a few days. They are considered the first choice for severe PMDD, especially when depressive moods or loss of control dominate.

Which herbal remedies help with PMDD?

​Many affected individuals seek herbal alternatives to conventional medications for treating premenstrual dysphoric disorder (PMDD). Some herbal preparations have proven potentially helpful:​

Chasteberry (Vitex agnus-castus): This herbal remedy is often used to treat menstrual disorders. Studies suggest that chasteberry can particularly relieve breast tenderness and other PMS symptoms. ​

St. John's Wort: Known for its antidepressant effects, St. John's Wort is sometimes used to treat mood swings related to PMS and PMDD. However, it can interact with other medications, so its use should be discussed with a doctor. ​

Evening Primrose Oil: Rich in gamma-linolenic acid, evening primrose oil is used to balance hormonal fluctuations and reduce symptoms such as irritability and breast tenderness. ​

Saffron: Some studies suggest that saffron may have positive effects on depressive moods and premenstrual symptoms. ​

Maca and Ashwagandha: These adaptogenic plants are traditionally used to promote hormonal balance and can support both PMS and PMDS symptoms. ​

CANNEFF® Suppositories and the Role of CBD

CANNEFF® offers medical products containing cannabidiol (CBD), a non-psychoactive compound from the hemp plant. CBD shows a modulatory effect on the GABA system in studies, which plays a central role in regulating anxiety and stress, especially the extrasynaptic GABAA receptors, also modulated by allopregnanolones. Through positive allosteric modulation of certain GABAA receptors, CBD can produce calming effects that might be helpful for those affected by PMDS. A biologically plausible effective mechanism exists, but clinical evidence is not yet available.

​Although many women benefit from herbal preparations, clinical evidence for some of these remedies is limited. Additionally, herbal medicines can interact with other medications or cause side effects. Therefore, it is essential to consult a doctor before taking such preparations to assess individual risks and benefits.

What can those affected do themselves to relieve their symptoms?

Women with PMDS are not powerless – on the contrary: conscious management of their own cycle, targeted lifestyle changes, and supportive measures can significantly help alleviate symptoms. The goal is to reduce emotional strain in the second half of the cycle, strengthen resilience, and better manage daily life. While self-help does not replace medical treatment for severe PMDS, it can be an important complement.

Overview: Self-Help Strategies for PMDS

Cycle-based lifestyle design

A particularly effective self-help approach is the so-called cycle-based time management. This involves consciously scheduling work-intensive phases in the first half of the cycle, while the second half is deliberately used for regeneration and reflection. This can help avoid emotional overload and regain a sense of control.

CBD suppositories as a supportive measure

As mentioned in the previous section, CANNEFF® vaginal suppositories with CBD and hyaluronic acid can also be used supportively – especially in the second half of the cycle. CBD modulates the GABAA system, which plays a central role in PMDD, and can have a calming and balancing effect. This plant-based medicinal supplement is available without a prescription but should ideally be part of a holistic strategy. Clinical studies have shown that in menopausal women, CANNEFF CBD suppositories can improve physiological menopause symptoms such as inner restlessness, sleep disorders, or hot flashes and enhance women's quality of life.

Why is PMDD often not recognized or taken seriously?

Despite its clear definition in the international classification systems DSM-5 and ICD-11, premenstrual dysphoric disorder (PMDD) is still often overlooked or trivialized in clinical practice. The reasons for this are varied – ranging from insufficient professional training to societal taboos and medical misperception of cycle-dependent symptoms.

Reasons for the lack of recognition of PMDD

Social and psychological aspects

• “That's just how it is with women” – many affected hear this phrase from doctors, partners, or colleagues. This attitude leads to complaints not being taken seriously but rather pathologized or ignored.
• Many women are ashamed to talk about their symptoms – especially when they involve intense anger, suicidal thoughts, or aggression.
• As a result, a feeling of isolation and self-doubt develops – even though the cause is biologically based and medically recognized.

Consequences of delayed diagnosis

A long suffering process is typical for many women with PMDD. Often several specialists are consulted before the correct diagnosis is made. During this time:

• relationships and work performance deteriorate,
• secondary psychological burdens arise, such as fear of losing control or depressive episodes,
• trust in medical help and in one's own body decreases.

Which specialists treat PMDD?

The treatment of premenstrual dysphoric disorder (PMDD) lies professionally at the intersection of gynecology, psychosomatics, and psychiatry. Therefore, it is understandable that many affected individuals are unsure whom to turn to. The right point of contact often depends on the severity of symptoms, previous treatment history, and individual life situation.

Why gynecologists often (still) hesitate

Although PMDD is clearly linked to the menstrual cycle, many gynecologists feel uncertain about treatment, especially regarding psychological symptoms or prescribing SSRIs. Reasons for this include:

• lack of training in dealing with affective disorders,
• uncertainty in handling psychopharmacological therapy options,
• outdated diagnostic systems (ICD-10 did not include PMDD as an independent diagnosis).
  
  

Interdisciplinary care as the ideal

In severe cases, interdisciplinary collaboration is ideal – for example, between gynecologists, psychotherapists, and psychiatrists. This allows for holistic care that considers hormonal, emotional, and social dimensions.

Specialized centers, such as those for psychosomatic gynecology or women's mental health (e.g., in university hospitals), often offer integrated care for PMDD.

Is there hope for better care for PMDD?

Yes – the care situation for women with PMDD is gradually improving, even though there is still significant catch-up needed in many areas. Thanks to medical advances, new classifications, and growing public awareness, premenstrual dysphoric disorder is increasingly recognized as a real, treatable condition – not only by professionals but also socially.

Three key advances in PMDD care

Beacons of hope in diagnosis and therapy

• Cycle diaries and specialized apps now help to accurately record symptoms – the basis for a correct diagnosis.
• New SSRI strategies (e.g., intermittent use) enable individually tailored therapies with fewer side effects.
• Increasing gynecological psychosomatics in clinics improves interdisciplinary care.
• Inclusion in guidelines and training programs for doctors promotes understanding of cycle-dependent affective disorders.

Challenges remain – but awareness is growing

Despite these advances, PMDD is:

• still too rarely correctly diagnosed,
• often mistaken for depression or burnout,
• and perceived by some professionals as "exaggerated."
  
  

But that is changing. More and more women are openly sharing their experiences.