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Advanced Gynaecology guide

Premenstrual Syndrome and PMDD

Using symptom diaries to distinguish PMS or PMDD and building a treatment plan that addresses physical and psychological symptoms.

Specialist-depth overview
10–12 min readUpdated 21 July 2026Evidence-informed patient education

Premenstrual syndrome (PMS) describes recurring symptoms in the luteal phase that improve after menstruation. Premenstrual dysphoric disorder (PMDD) is a severe form with prominent mood and functional effects. Prospective symptom tracking is central to diagnosis.

Symptoms should show a repeated cycle-related pattern rather than being present at the same intensity throughout the month.
A daily symptom diary over at least two cycles helps distinguish PMS or PMDD from other conditions.
Treatment may combine lifestyle support, psychological care, medicines and hormonal approaches.
Original educational diagram for Premenstrual Syndrome and PMDD
Original educational diagram created for this topic. It explains the care pathway visually and is not a diagnostic image.

Recognising the pattern

Symptoms can include irritability, low mood, anxiety, bloating, breast tenderness, headaches and sleep or concentration changes. The key feature is timing and remission, so retrospective recall alone can be misleading.

Assessment and other diagnoses

Clinicians review depression, anxiety, thyroid disease, perimenopause, medication effects and safeguarding concerns. Existing mental-health conditions can worsen premenstrually and may need treatment throughout the cycle.

Treatment ladder

Exercise, sleep, reduced alcohol and structured psychological strategies may help. Depending on severity and preference, selective serotonin reuptake inhibitors or hormonal suppression may be discussed. Response should be measured using the symptom diary.

Severe symptoms and specialist care

When symptoms remain disabling, specialist assessment can consider additional hormonal strategies. Surgical options are rarely used and require careful confirmation that ovarian suppression improves symptoms before irreversible treatment is considered.

Questions worth discussing at your consultation

  • Does my diary show a true premenstrual pattern?
  • Could another mental-health or hormonal condition be contributing?
  • Which treatment best matches my main symptoms and pregnancy plans?
  • How will treatment response be measured?
When to seek urgent careSeek immediate mental-health or emergency support for thoughts of self-harm, inability to stay safe, severe agitation or rapidly worsening depression.
Medical note: This page is educational and is structured to support a specialist consultation. Diagnosis, investigations and treatment must be individualised. It has not been presented as a substitute for an examination or emergency assessment.