# PMDD: when PMS turns the volume to max > A real, treatable condition, and you are not “too sensitive”. Category: Conditions · 6 min read · Written by the Splash team · Sources checked October 2026 URL: https://splash.care/learn/conditions/pmdd ## Quick answer PMDD (premenstrual dysphoric disorder) is a severe, cyclical reaction to normal hormone changes that causes intense mood symptoms such as depression, anxiety, irritability or feeling out of control in the week or two before a period, easing once it starts. It is more severe than PMS. Diagnosis usually needs daily symptom tracking over at least two cycles. - PMDD is a severe, cyclical mood condition, not “bad PMS you should push through”. - It is linked to sensitivity to normal hormone changes, not abnormal levels. - Daily tracking over two cycles is the key to diagnosis. - Effective treatments exist, including SSRIs, certain pills and therapy. ## Key facts - Symptoms start in the luteal phase and ease within a few days of the period starting. - Diagnosis usually relies on daily symptom ratings over at least two cycles. - Treatments a doctor may discuss include SSRIs, hormonal options and CBT (NHS). Imagine feeling like yourself for two weeks, then like someone has swapped your brain for a storm cloud, then back again, every single month. For people with [PMDD](https://splash.care/learn/glossary/pmdd), that is not an exaggeration. It is a recognised medical condition, and it deserves proper care. **1.6 to 3.2 in 100** people who have periods have a confirmed PMDD diagnosis, according to a 2024 review of 44 studies. Studies that skip daily tracking give higher numbers (about 8 in 100), which the authors say are likely to be too high. ## What is the difference between PMDD and PMS? PMDD can include the physical symptoms of [PMS](https://splash.care/learn/glossary/pms), but the emotional ones are much more intense and can seriously disrupt work, study and relationships. Symptoms usually start 10 to 14 days before a period and ease within a few days of bleeding starting. - Irritability, anger or feeling on edge - [Anxiety](https://splash.care/learn/mind-mood/luteal-anxiety) or panic attacks - Deep [low mood](https://splash.care/learn/mind-mood/why-mood-shifts), hopelessness or suicidal thoughts - Trouble concentrating, fatigue and low energy - Food [cravings](https://splash.care/learn/nutrition/cravings), binge eating and [sleep](https://splash.care/learn/movement-sleep/sleep-cycle) problems - Feeling overwhelmed or out of control ## What causes PMDD? The cause is not fully understood, but the NHS links it to being very sensitive to normal [hormone](https://splash.care/learn/cycle-basics/hormones-explained) changes, plus some inherited differences in genes. Your hormones are not “wrong”; your brain responds to their shifts more strongly. Hormone blood tests are usually normal, so they are not used to diagnose it. **Myth:** If your hormone blood tests are normal, it cannot be PMDD. **Fact:** PMDD is about how you respond to hormone changes, not abnormal levels. Diagnosis is based on tracking symptoms across cycles. ## Is it PMDD or something that gets worse before my period? Depression and anxiety are common. If your low mood or anxiety is there all month and just gets worse before your period, that is called premenstrual exacerbation, and it needs treatment all month. With PMDD, symptoms mostly disappear in the week after your period. Daily tracking is the best way to tell them apart, and some people have both. ## How is PMDD treated? There is no single best option, so it is worth discussing the choices with a GP or a specialist: - SSRI antidepressants, taken all month or only in the [luteal phase](https://splash.care/learn/glossary/luteal-phase). The RCOG lists them as a first-choice treatment for severe PMS. - Certain combined pills with a [progestogen](https://splash.care/learn/glossary/progestogen) called drospirenone, sometimes taken continuously. The RCOG also lists these as first-choice. - [CBT](https://splash.care/learn/glossary/cbt) and other talking therapies - Regular exercise, sleep and stress management, and cutting back on alcohol and caffeine - Specialist referral if first-line options do not help. Medicines that temporarily switch off your ovaries ([GnRH](https://splash.care/learn/glossary/gnrh) analogues) are sometimes used under specialist care. Surgery to remove the ovaries is a last resort, and only after a trial. > **Splash says:** PMDD is diagnosed by pattern, so daily mood logs are gold. Rate your mood every day for two cycles, then bring the Splash Doctor report to your appointment. **Quick quiz:** When do PMDD symptoms typically ease? 1. Mid-cycle at ovulation 2. Within a few days of the period starting 3. They never ease Answer: Within a few days of the period starting. PMDD is cyclical: symptoms build in the luteal phase and lift within a few days of bleeding starting. ### When to see a doctor If you have thoughts of harming yourself or ending your life, this is an emergency: call 999 or go to A&E, or call Samaritans on 116 123 any time (free). Under 19? Childline is on 0800 1111. For PMDD symptoms that disrupt your life, book a GP appointment and say the word “PMDD”, and take your symptom diary. ## Questions people ask ### Is there a PMDD test? There is no blood test. Doctors look for a pattern of severe mood symptoms in the days before your period that ease once it starts, usually confirmed by tracking symptoms daily for two cycles. A free self-check can help you decide whether to speak to a GP, but it cannot diagnose PMDD. ### How do I track symptoms for PMDD? Rate your mood and symptoms every day, including on good days, for at least two cycles, and note when your period starts. A tracker that shows symptoms by cycle day makes the pattern easy to show a doctor. ### What should I do if PMDD makes me feel unsafe? If you are having thoughts of harming yourself, get help now: in the UK call 999 or Samaritans on 116 123; in the US call or text 988. You do not have to wait for your period to pass. ## Sources 1. [NHS: PMS (premenstrual syndrome)](https://www.nhs.uk/conditions/pre-menstrual-syndrome/) 2. [RCOG: Managing premenstrual syndrome (PMS)](https://www.rcog.org.uk/for-the-public/browse-our-patient-information/managing-premenstrual-syndrome-pms/) 3. [Reilly et al. 2024: The prevalence of premenstrual dysphoric disorder (systematic review and meta-analysis)](https://pubmed.ncbi.nlm.nih.gov/38199397/) 4. [IAPMD: What is PMDD?](https://www.iapmd.org/pmdd) This is general information, not medical advice. Splash can’t diagnose. If you’re worried, talk to a GP, pharmacist or sexual health clinic. In an emergency call 999 (UK) or 911 (US).