PMDD: When It Is More Than PMS
PMDD is a severe, cyclical condition that can upend your mood, work and relationships in the days before a period. Here is how it differs from PMS, how to track it over two cycles and what treatment can do.
TL;DR: Premenstrual dysphoric disorder (PMDD) is a severe condition in which intense mood symptoms arrive in the week or two before a period and ease soon after it starts. A confirmed diagnosis needs symptoms tracked daily over two cycles. SSRI antidepressants, some hormonal contraceptives and talking therapy can all help. If you have thoughts of ending your life, go to your nearest hospital emergency department today.
Every month there is a stretch when you stop feeling like yourself. You snap at people you love, cry at your desk, or become sure that your friends are tired of you and that your whole life is going wrong. Then your period comes, and within a couple of days the world looks ordinary again, leaving you to apologise and wonder what happened. Perhaps you have been told it is just PMS, that every woman goes through it, that you should pray about it or toughen up. If this pattern sounds familiar, it deserves a proper look, because PMDD is a recognised and treatable condition.
What is the difference between PMS and PMDD?
The difference is severity and how much of your life it takes over. The NHS describes PMDD as a more severe form of PMS, with symptoms that are much more intense and have a much greater impact on everyday life.
PMS commonly brings mood swings, bloating, tender breasts and headaches, and these can vary from month to month. PMDD can include those physical symptoms too, but its centre of gravity is mood. The US Office on Women's Health lists severe irritability or anger, sadness or despair, tension or anxiety, panic attacks, trouble focusing, low energy and sleep problems, starting in the week or two before a period and usually going away two to three days after it begins.
Timing is the clue. Researchers describe PMDD as having symptoms confined to the premenstrual phase. If you feel low all month and only a little worse before your period, that is still worth raising, but a doctor will want to look at other explanations too, including depression. For what the second half of the cycle does to energy in general, read why you crash the week before your period.
How common is PMDD?
The Office on Women's Health says PMDD affects up to 5% of women of childbearing age. A 2024 review of 44 studies and more than 50,000 participants put the figure at 3.2% when the diagnosis was confirmed and 7.7% when it was provisional.
Numbers from African settings are harder to pin down. A review of studies among female students in Ethiopia reported a pooled prevalence of 54.5%, far above the global estimates. The authors of the 2024 review warn that studies relying on provisional diagnosis are likely to produce artificially high rates, and they found results varied by continent, so a single high figure needs care. The Ethiopian authors called for early screening and appropriate care in primary health services, and that call applies well beyond one country.
How is PMDD diagnosed?
PMDD is diagnosed from your health history and a pattern over time. To meet the definition, you need five or more PMDD symptoms, including at least one that affects your mood. A confirmed diagnosis requires symptoms to be monitored over two cycles as they happen, rather than from memory. Without that record, a diagnosis stays provisional.
This is good news in one way: the most useful test is something you can start tonight. The NHS also advises keeping a symptom diary for at least two menstrual cycles and taking it to your appointment.
What to write down each day
Keep it short so you will keep it up. A note on your phone or in an exercise book is enough.
- The day of your cycle, and the first day of each period
- Your mood, rated from mild to severe for sadness, irritability, anxiety and feeling overwhelmed
- Sleep, energy and concentration
- Physical symptoms such as bloating, breast tenderness or headaches
- What it stopped you doing: missed work, a row at home, cancelling on a friend
- Any thoughts of self-harm or of not wanting to be alive
Take the record to your doctor and point to the gap between the bad days and the good days. That gap is what makes the pattern visible, and it is much harder to wave away than a description of feeling stressed.
PMDD and suicidal thoughts
This part is hard to read, and it matters. The NHS lists feeling suicidal among the symptoms PMDD can bring. A 2021 review found that women with PMDD are more likely to have suicidal thoughts and to attempt suicide than women without premenstrual problems, and its authors called for routine assessment of suicide risk in women with moderate to severe premenstrual symptoms.
If this is happening to you, it is a symptom of an illness and it is not a failure of faith, character or strength. Tell a doctor plainly, using those words, and tell them when in your cycle it happens.
If you have thoughts of ending your life or cannot keep yourself safe, go to your nearest hospital emergency department today. Ask someone you trust to take you, rather than driving yourself, and bring any medicines you take. Our mental health guide sets out where to find crisis support and affordable care in Lagos, Nairobi and London. And if a friend, sister or colleague tells you she feels this way, stay with her and go together.
What treatments work for PMDD?
Several treatments help, and you may need to try more than one before you find the right fit.
SSRI antidepressants. The Office on Women's Health lists sertraline, fluoxetine and paroxetine as SSRIs approved for PMDD in the US. A 2024 Cochrane review of 34 trials found that SSRIs probably reduce premenstrual symptoms in women with PMS and PMDD. They can be taken every day or only in the second half of the cycle, and the review found daily use was probably more effective. Nausea, insomnia, tiredness and lower libido were among the side effects it recorded. Being offered an antidepressant does not mean anyone thinks you are imagining this. Talk to your prescriber before you stop or change a dose, and tell them if you are trying to conceive.
Hormonal options. The NHS says a GP may suggest hormonal medicine such as the combined contraceptive pill. In the US, a pill containing drospirenone and ethinyl estradiol is approved specifically for PMDD. Availability and price vary by country, so ask your doctor or pharmacist what is stocked locally, and whether the combined pill is safe for you.
Talking therapy. Cognitive behavioural therapy is one of the options the NHS names. It can give you ways of handling the worst days and repairing things afterwards.
Everyday measures. Regular exercise, balanced meals, good sleep and stress reduction are recommended for PMS, and painkillers such as ibuprofen can ease the physical symptoms. If they do not help enough, the NHS says a GP may suggest the medical options above.
If symptoms persist despite treatment, the NHS says you may be referred to a specialist. Keep your diary going through any treatment, because it is the clearest way to tell whether something is working.
Getting taken seriously
Many women are told that this is simply what being a woman involves. Bring your two cycles of notes, name PMDD directly, and say what it costs you: the days of work, the arguments, the fear. If a clinician brushes it off, it is reasonable to ask for a second opinion. For a longer conversation, listen to our podcast episode on PMS and PMDD, and see the wider picture in our guide to periods.
Asele's cycle tracking and symptom logging can hold your daily record in one place, and the Health Brief turns it into a short summary for your appointment. You can find us at Asele.
This post is education, not medical advice. Please speak to a qualified clinician about your own symptoms.
References
- NHS. PMS (premenstrual syndrome). nhs.uk
- US Office on Women's Health. Premenstrual dysphoric disorder (PMDD). womenshealth.gov
- Reilly TJ, et al. The prevalence of premenstrual dysphoric disorder: systematic review and meta-analysis. Journal of Affective Disorders, 2024. pubmed.ncbi.nlm.nih.gov
- Duko B, et al. The prevalence of premenstrual dysphoric disorder among adolescents in Ethiopia: a systematic review and meta-analysis. Irish Journal of Medical Science, 2021. pubmed.ncbi.nlm.nih.gov
- Prasad D, et al. Suicidal risk in women with premenstrual syndrome and premenstrual dysphoric disorder: a systematic review and meta-analysis. Journal of Women's Health, 2021. pubmed.ncbi.nlm.nih.gov
- Jespersen C, et al. Selective serotonin reuptake inhibitors for premenstrual syndrome and premenstrual dysphoric disorder. Cochrane Database of Systematic Reviews, 2024. pubmed.ncbi.nlm.nih.gov
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