PMDD: severe premenstrual mood symptoms explained

For about a week before your period, you do not feel like yourself. Small things set off rage. You feel hopeless, or so anxious you cannot sit still. You say things you regret. Then your period starts and, within a few days, the fog lifts. A month later, it happens again.

If this sounds familiar, you may have heard 'it is just PMS' or 'it is just hormones.' For some people, it is more than that. It may be premenstrual dysphoric disorder, or PMDD, a recognised and treatable condition. This article explains what it is. It cannot tell you whether you have it. Only a doctor or mental health professional can do that.

What PMDD is

The NHS describes PMDD as a more severe form of premenstrual syndrome (PMS). The symptoms are similar but much more intense, with a much greater effect on everyday life. They can include feeling very anxious, angry or depressed, headaches, joint and muscle pain, overeating and sleep problems. PMDD was added to the American Psychiatric Association's DSM-5 in 2013, so it is recognised as a health condition and not a character flaw.

A 2012 article in the American Journal of Psychiatry describes how the DSM-5 work group reviewed the evidence and proposed that PMDD be a full diagnostic category, after years of research on its patterns, causes and treatment.

How it is diagnosed, in plain language

The DSM-5 criteria, as reproduced in a 2021 published review (Osborn and colleagues), describe the following. Doctors use the exact wording of the current manual, so treat this as a guide and not a checklist for yourself.

• Timing: in most cycles, symptoms appear in the final week before your period, begin to improve within a few days after it starts, and are minimal or absent in the week after.
• Number of symptoms: at least five in total, and at least one must be a core mood symptom: mood swings, irritability or anger, low mood or hopelessness, or anxiety or tension.
• Other symptoms that can count towards the five: less interest in usual activities, trouble concentrating, tiredness, changes in appetite, sleep changes, feeling overwhelmed or out of control, and physical symptoms such as breast tenderness or bloating.
• Impact: the symptoms cause significant distress, or get in the way of work, school, social life or relationships.
• Not something else: it should not be just a flare of another condition such as depression, panic disorder or a personality disorder, although PMDD can exist alongside them. It also should not be caused by a medicine, a substance or another medical condition.
• Confirmation: the pattern should be confirmed by daily ratings over at least two symptomatic cycles. A provisional diagnosis can be made before that.

Why daily ratings? Because memory is unreliable. A 2024 review of 44 studies (Reilly and colleagues, Journal of Affective Disorders) states that a confirmed diagnosis needs prospective monitoring of symptoms over two cycles, otherwise it is only provisional. The Daily Record of Severity of Problems is the most commonly used rating tool, according to an international consensus paper (ISPMD).

How common is it?

Estimates depend on how the studies were done. The 2024 meta-analysis of 44 studies and 50,659 people found a pooled prevalence of 3.2% for confirmed diagnosis (95% confidence interval 1.7% to 5.9%) and 7.7% for provisional diagnosis. In community samples with a confirmed diagnosis, it was 1.6%. A 2012 paper in the American Journal of Psychiatry put it at 2% to 5% of premenopausal women, and a 2008 Lancet review said 5% to 8% of women have severe PMS, most of whom also meet PMDD criteria.

The range is wide, and the reasons are mostly about method. The 2024 review notes that studies relying on a provisional diagnosis, without daily tracking, are likely to produce artificially high numbers.

In India, a 2021 meta-analysis of 25 studies with 8,542 participants (Dutta and Sharma, Health Promotion Perspectives, 11 of which reported PMDD) estimated PMDD at about 8% (95% CI 6% to 10%), but noted very high variation between studies. A 2016 study of 489 college students in Bhavnagar, Gujarat, published in the Indian Journal of Psychiatry, found PMDD in 3.7% using DSM-IV-TR criteria. Because methods differ so much, treat the numbers as rough.

What causes it?

No one fully knows. Current research suggests it is not about having abnormal hormone levels. The NIMH says current research suggests that people with PMDD may have an abnormal sensitivity to a normal change in hormones. The 1998 study by Schmidt and colleagues in the New England Journal of Medicine supports this idea. When ovarian hormones were switched off with medicine, symptoms improved. When oestrogen or progesterone were added back, symptoms returned in women with PMS, but not in women without it. The authors concluded that symptoms represent an abnormal response to normal hormonal changes.

The NHS says PMDD has been linked to sensitivity to hormone changes or inherited genes. Cleveland Clinic adds that serotonin, a brain chemical involved in mood, may play a role. It lists risk factors including existing anxiety or depression, having PMS, a family history of PMS, PMDD or mood disorders, and a history of trauma or highly stressful events.

Risks, including suicidal thoughts

PMDD can strain relationships, work and studies. It also carries a safety risk that deserves honesty. A 2021 systematic review and meta-analysis (Prasad and colleagues, Journal of Women's Health) combined 10 studies. It found that women with PMDD had higher odds of suicidal thoughts (odds ratio 3.95) and of suicide attempts (odds ratio 6.97) compared with women without premenstrual disturbances. These are associations from studies. They do not mean any individual will feel this way, and the reviewers concluded that risk should be routinely checked in moderate to severe cases and treatment should address it.

Treatment options, decided with a doctor

There is more than one route, and the right one depends on you. In general, the options described by the NHS, Cleveland Clinic and a 2008 Lancet review include:

• A class of antidepressants called SSRIs. The Lancet review says they are well established as effective whether taken throughout the cycle or only in the second half of the cycle (the luteal phase). Your doctor decides which approach suits you.
• Certain hormonal options. The NHS lists hormonal medicine such as the combined contraceptive pill, and the Lancet review notes that interventions that stop ovarian cycling can reduce symptoms, as can some oral contraceptives. Womenshealth.gov notes that hormonal birth control may help physical symptoms but can worsen others, so this needs medical advice.
• Cognitive behavioural therapy (CBT), which the NHS lists among the treatments a GP may suggest for premenstrual symptoms.
• Lifestyle support: regular exercise, sleep, stress management, limiting alcohol and not smoking. The NHS notes there is not much evidence that supplements work, so check with a doctor or pharmacist before taking any.

Never start, stop or change a medicine on your own. The NHS says that if symptoms continue after the first treatments, you may be referred to a specialist, such as a gynaecologist or psychiatrist.

The Indian context

Many people in India learn early that periods are not to be discussed. The 2021 meta-analysis by Dutta and Sharma says that because menstruation is something of a taboo in conservative societies, and because of traditional gender roles, awareness of premenstrual disorders and help-seeking for them has been low. When someone says 'it is just PMS' or 'all women go through this', the pain gets ignored. It may also be hard to find a gynaecologist or psychiatrist nearby, and to feel comfortable explaining it. A symptom diary can help here. It gives you something concrete to show, and it makes your experience easier to explain.

Telling someone you trust, such as a partner, a friend, or a family member, can also help them understand what happens before your period and how to support you.