Premenstrual syndrome (PMS/PMDD)
Exam relevance: in 1 of 197 board exam reports · rank 171
- Synonyms
- PMS, premenstrual syndrome, PMDD
- Specialty
- Gynaecology · Endocrinology & cycle
- Exam relevance
- 1 of 197 reports · rank 171
- Last updated
- 10/2026 · Dr. Pascal Bafteh
Contents
Definition
- Premenstrual syndrome comprises mood, behavioural and physical symptoms that begin in the luteal phase about 1 to 2 weeks before menstruation and resolve shortly after bleeding starts.
- Premenstrual dysphoric disorder is the most severe form and is classified among the depressive disorders in DSM-5.
Occurrence & epidemiology
Epidemiology
- Most women of reproductive age experience at most mild premenstrual discomfort; 5–8% develop moderate to severe symptoms with significant impairment.
- The prevalence of PMDD among women of reproductive age in the United States is given as about 2–6%; global estimates vary widely.
Aetiopathogenesis
Aetiology and pathogenesis
- The cause is unclear; an individually increased sensitivity to normal cyclical hormonal fluctuations is assumed, involving progesterone metabolites such as allopregnanolone and the GABAergic and serotonergic systems.
Clinical features
- Physical symptoms include breast tenderness, headache, joint or muscle pain, bloating and weight gain.
- Core psychological symptoms are depressed mood, anxiety and tension, affective lability and irritability or anger; irritability is among the most common symptoms.
Diagnosis
- For PMDD, DSM-5 requires at least 5 of 11 symptoms, including at least 1 of the 4 core symptoms, in most menstrual cycles of the preceding year.
- Symptoms occur in the final week before menstruation and resolve in the week after; this is confirmed by prospective daily symptom ratings over at least 2 consecutive cycles.
Keep learning in the app
Further reading (selection)
Cross-references
Note: Learning content from the GynFuchs app (flashcards, exam questions, image cases) for medical education – not a treatment recommendation and no substitute for diagnosis or treatment decisions in individual cases. Treatment and management are deliberately not covered on this page.