Premenstrual dysphoric disorder (PMDD)

Also called PMDD

Premenstrual dysphoric disorder (PMDD) is a much more severe form of premenstrual syndrome. Symptoms start in the week or two before a period and stop soon after it starts. It is thought to be caused by a sensitivity to the normal hormone changes of the menstrual cycle.

Last updated Nov 9, 2026

What it is

Symptoms can be strong enough to affect work, relationships and daily life, and some people have thoughts of suicide.

Treatments include antidepressants, the contraceptive pill, talking therapy and lifestyle changes. In some cases, medicines that stop periods or surgery may be considered.

Common signs

  • Feeling very low, hopeless or anxious
  • Severe mood swings or anger
  • Feeling out of control
  • Loss of interest in daily activities
  • Physical symptoms such as bloating and breast tenderness

How it is usually diagnosed

  • Keeping a symptom diary for at least 2 cycles
  • Assessment by a GP, gynaecologist or psychiatrist

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • A symptom diary
  • Gynaecology or mental health letters
  • Medicine lists

Questions to ask your doctor

  • Which treatment would you suggest first?
  • Can my mood symptoms be treated only before periods?
  • Is there a specialist I can be referred to?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Thoughts of harming yourself or ending your life: get urgent help, call 112 if in danger

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources