Understanding this cyclical companion of the female body
If your body were a TV series, premenstrual syndrome would likely be part of the main cast: recurring, sometimes unpredictable, frequently discussed near the coffee machine , yet still widely misunderstood in its physiological reality. Before diving deeper, let’s start with a clear scientific statement: premenstrual syndrome (PMS) refers to a set of physical, psychological, and behavioral symptoms that occur cyclically before menstruation and usually ease with the onset of bleeding.
What we experience and feel during this phase is not simply a case of “temporary bad mood.” It is a phenomenon rooted in menstrual cycle biology, involving hormonal, neurological, and even social mechanisms. This article invites you to understand PMS in all its dimensions: what it truly is, how it manifests, why it occurs, how it is diagnosed, and what current approaches exist to relieve it.
1. A quick refresher: the menstrual cycle and the luteal phase
To understand PMS, it helps to locate where it fits within the menstrual cycle. The cycle includes several phases: the follicular phase (before ovulation), ovulation itself, and the luteal phase, which occurs between ovulation and the start of menstruation. PMS symptoms appear specifically during this second half of the cycle.
Why? After ovulation, the corpus luteum produces hormones such as progesterone and estrogen. Although hormone levels in people affected by PMS are not necessarily abnormal, research suggests that their bodies respond differently to these normal hormonal fluctuations.
2. What is premenstrual syndrome?
Premenstrual syndrome is not a single disease, but a recurring pattern of symptoms that:
- appear before menstruation,
- repeat from cycle to cycle,
- and usually disappear shortly after bleeding begins.
Scientific definition
According to research published in PubMed, PMS includes “clinically significant somatic and psychological symptoms occurring during the luteal phase of the menstrual cycle, causing distress and functional impairment, and resolving within days after the onset of menstruation.”
3. How does PMS manifest?
PMS can affect many aspects of physical and emotional experience. There is no single universal symptom, but rather a constellation whose intensity varies from person to person.
❖ Physical symptoms
- Bloating and water retention
- Muscle pain or abdominal cramps
- Breast tenderness or pain
- Headaches
- Increased fatigue
- Digestive issues (constipation or diarrhea)
❖ Emotional and behavioral symptoms
- Mood swings, irritability
- Sadness, anxiety, tension
- Crying spells without obvious cause
- Strong food cravings (often sweet foods)
- Difficulty concentrating
PMS affects both body and mind. It is neither trivial nor a lack of self-control , it is a systemic response linked to the hormonal cycle.
4. Why does it happen? The causes of PMS
The question many ask is: “Why me?” Unfortunately, the answer is complex.
❖ Hormonal fluctuations and individual sensitivity
Ovarian hormones such as estrogen and progesterone naturally fluctuate throughout the cycle. In some people, these changes interfere with the regulation of other chemical messengers , particularly serotonin, a neurotransmitter involved in mood, appetite, and sleep.
Rather than a hormonal excess or deficiency, PMS is thought to reflect heightened sensitivity to normal hormonal changes. Alterations in neurosteroid metabolism (such as allopregnanolone, derived from progesterone) are also suspected to play a role in some cases.
❖ Amplifying factors
Several elements can worsen symptoms:
- Chronic stress or poor sleep
- Unbalanced diet
- Low physical activity
- Genetic or psychosocial factors
In short, PMS is multifactorial , a dynamic interaction between hormones, brain chemistry, lifestyle, and environment.
5. A cyclical condition: the role of the luteal phase
The timing of symptoms is a key diagnostic criterion. They must:
- appear during the luteal phase,
- disappear shortly after menstruation begins,
- and recur for at least three consecutive cycles.
This cyclical pattern distinguishes PMS from other mood disorders and explains why symptoms are often predictable , even if never welcome.
6. PMS vs. PMDD: understanding the difference
PMS can take a more severe form known as premenstrual dysphoric disorder (PMDD). This condition affects a minority of people (estimated 3–8%) and is marked by severe emotional symptoms that significantly impair quality of life.
While PMS may be uncomfortable yet manageable, PMDD often requires more targeted medical treatment.
7. How is PMS diagnosed?
There is no specific blood test or imaging exam for PMS. Diagnosis relies primarily on observation and pattern recognition, including:
- Daily symptom tracking over at least three cycles
- Standardized questionnaires
- Assessment of functional impact on daily life
The goal is to identify a consistent temporal link between the luteal phase and symptom onset.
8. Approaches to symptom relief
Management strategies fall into two main categories: lifestyle adjustments and medical interventions.
❖ Lifestyle changes
Research suggests that:
- Regular physical activity can reduce physical and emotional symptoms
- A balanced diet rich in essential nutrients (calcium, B vitamins) may help
- Good sleep quality and stress-management techniques (meditation, relaxation) are valuable allies
These measures may not eliminate symptoms entirely, but they often reduce their impact.
❖ Medications and targeted treatments
Depending on severity, treatment options may include:
- NSAIDs for pain
- Diuretics for fluid retention
- SSRIs for severe emotional symptoms
- Continuous hormonal contraception to limit hormonal fluctuations
All treatment decisions should be personalized and made with a healthcare professional.
9. Common questions about PMS
🌀 Can it improve with age?
For some people, symptoms lessen over time or after pregnancy; for others, they persist until menopause.
🌀 Does everyone experience it?
No. Estimates suggest that up to half of people of reproductive age experience clinically significant PMS.
🌀 How do you distinguish PMS from other mood disorders?
The key is the cyclical pattern: symptoms appear before menstruation, disappear after, and repeat predictably.
10. In summary
Premenstrual syndrome is a complex biopsychosocial expression of the menstrual cycle. It reflects dynamic interactions between hormonal fluctuations, brain chemistry, and lifestyle factors. It is neither a weakness nor an emotional exaggeration , it is a real physiological phenomenon with tangible effects on daily life.
Fortunately, scientific understanding continues to grow, and effective management options exist, from daily well-being strategies to tailored medical treatments. The guiding principle is simple: recognize, understand, and support , both individually and within healthcare systems.tèmes de santé.
Sources
- PubMed , Premenstrual Syndrome (2024) https://pubmed.ncbi.nlm.nih.gov/32809533/ (PubMed)
- PMC , Premenstrual Syndrome and Premenstrual Dysphoric Disorder’s Definition and Diagnosis https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10673441/ (PMC)
- PubMed , Premenstrual Syndrome: Management and Pathophysiology (2015) https://pubmed.ncbi.nlm.nih.gov/26054102/ (PubMed)
- PubMed , Recent advances in understanding/management of PMS/PMDD (2022) https://pubmed.ncbi.nlm.nih.gov/35574174/ (PubMed)
- PubMed , Premenstrual syndrome: etiology, diagnosis and treatment (2015) https://pubmed.ncbi.nlm.nih.gov/26351143/ (PubMed)
