When anxiety or depression gets worse before your period

You already know your anxiety, or your low mood, well. It is there on most days. But in the week before your period, it gets louder. The worry is harder to switch off. The heaviness presses harder. You may wonder whether this is PMS, or whether your treatment has stopped working, or whether you are getting worse.

There is a name for this pattern: premenstrual exacerbation, or PME. Here we call it premenstrual worsening. It is real, it is studied, and it can be managed. This article explains what it is and what may help. It cannot diagnose you. Only a doctor or mental health professional can do that.

What premenstrual worsening means

A 2024 review in Frontiers in Psychiatry (Lin and colleagues) defines premenstrual exacerbation as the worsening of the symptoms of another existing disorder during the premenstrual phase. The key point is that the symptoms of the existing disorder are still present throughout the entire cycle.

Womenshealth.gov notes that depression and anxiety disorders are the most common overlap with PMS and may worsen before or during your period. So if your baseline is already difficult, the days before your period can feel like turning the volume up.

How it differs from PMS and PMDD

The difference is what happens to your mood in the good part of the month. In PMS and PMDD, symptoms rise before the period and ease after it. The Frontiers review says there is an absence of symptoms in the follicular phase, which is the stretch from your period until ovulation. The DSM-5 criteria for PMDD, as reproduced in a 2021 published review, describe symptoms that are minimal or absent in the week after the period.

With premenstrual worsening, the symptoms of the existing condition do not clear after the period. Your baseline anxiety or low mood continues, and it gets worse before your period. PMDD can also occur alongside depression or anxiety, and DSM-5 criteria say a diagnosis of PMDD should not be made if the problem is only a flare of another disorder. That is exactly why a clinician needs to look at your pattern.

How common is it?

Nobody knows for sure. The Frontiers review says the prevalence of premenstrual exacerbation across psychiatric disorders is poorly defined, because there has been little research and because many studies rely on people remembering their symptoms afterwards, which can be inaccurate.

Some figures exist. In a large US study of depression treatment called STAR*D, 64% of premenopausal women with major depression reported premenstrual worsening of their depression. That number comes from looking-back reports, so it can be affected by recall. A 2022 systematic review of 35 studies that tracked symptoms prospectively (Nolan and Hughes, Archives of Women's Mental Health) found clear evidence of worsening in the days around menstruation for depression, panic disorder, eating disorders, psychotic disorders and borderline personality disorder. The evidence for anxiety was less consistent. The authors concluded that hormonal changes may worsen symptoms in a subgroup of people who are sensitive to them. Not everyone is affected.

Why tracking helps

Tracking is the most useful thing you can do before an appointment. The Frontiers review says diagnosis needs prospective symptom tracking across at least two symptomatic cycles. Prospective means recorded each day as it happens, not remembered later. The NHS also recommends keeping a symptom diary for at least two menstrual cycles and taking it to your doctor.

For premenstrual worsening, your diary helps answer one question: do your symptoms ease to a minimal level at some point in the month? Each evening, note:

• Your anxiety or low mood, rated from 0 (none) to 3 (severe)
• The first day of your period and the last
• Sleep, energy and appetite
• Any medicine you took and when, so your doctor sees the full picture
• How much the day affected work, family or plans

After two or three cycles, you may see that your mood is low all month and dips further before your period. Or you may see a clearly better week. Either way, your doctor can use it.

What treatment can look like

Premenstrual worsening is less well studied than PMDD, so there is no single standard approach. The condition that is there all month still needs care, whether that is depression, anxiety or something else, and your own plan should come from a clinician who knows you.

Then the timing matters. The Frontiers review says standard treatment may not fully cover the premenstrual flare-ups. In one small pilot study, adjusting the dose of a medicine in the premenstrual days was found to help, but the authors state the evidence for this is limited. They also say that if symptoms keep worsening in the premenstrual phase despite treatment, doctors may need to review the treatment plan. Treatment for premenstrual worsening differs by condition, and the research on anxiety is minimal.

Some doctors may also discuss hormonal options. The effects of hormonal contraception on mood differ from person to person, and Womenshealth.gov notes that hormonal birth control may help physical symptoms but can worsen others. This is a conversation for your doctor.

Self-help that may help

These steps support treatment. They do not replace it. The NHS lists regular exercise, a balanced diet, enough sleep, yoga or meditation, avoiding smoking and limiting alcohol for premenstrual symptoms. Womenshealth.gov adds that many people find it helps to talk with friends, journal or try massage for stress, and to avoid caffeine, salt and sugar in the two weeks before a period.

• Plan ahead. Once your diary shows your hard days, keep that week lighter where you can, with fewer big decisions and fewer late nights.
• Tell one person. A friend or partner who knows your pattern can help you ride out the bad days.
• Be kind to yourself. Worsening before your period is not a failure.

Talking to your doctor about it

It can feel awkward to bring up your period in a mental health appointment, or your mood in a gynaecology appointment. Try opening with your diary. You might say: 'My anxiety is there most days, but I have noticed it gets much worse about a week before my period. Here are my notes.' Ask whether your cycle could be part of the picture, and whether your current treatment plan should take it into account. If you see more than one doctor, such as a physician and a psychiatrist, it helps to show the same diary to each of them.

When to seek help

If your anxiety or low mood is getting in the way of life, you do not need to wait for two cycles of notes. See a doctor now, and keep your diary going. In India, it can help to start with a general physician or gynaecologist you trust, and ask for a referral to a psychiatrist if needed. Our article on therapy in India explains how to find a professional.