How long do PMS symptoms last?
PMS usually lasts about 5 to 10 days: it starts in the second half of the luteal phase and eases within about four days after your period begins. For some people it's only two or three days; for others it can stretch to two weeks. Symptoms that continue well past your period, or all month, are probably not PMS.
A typical PMS timeline
| Time | What often happens |
|---|---|
| Ovulation | No PMS yet; many people feel their best |
| 7 to 10 days before your period | First signs for some: breast tenderness, cravings, tiredness |
| 3 to 5 days before | Mood symptoms often build: irritability, sadness, anxiety |
| 1 to 2 days before | Usually the peak: bloating, cramps, strongest mood changes |
| Day 1 to 2 of your period | Relief starts for many, though pain and tiredness may continue |
| Day 3 to 4 | Most PMS symptoms gone |
| Rest of follicular phase | Symptom-free for at least a week |
That last row matters. Doctors define PMS by its pattern: symptoms that appear before your period, clear up within about four days of bleeding, and stay away until after ovulation, in at least three cycles in a row.
Why PMS can feel longer some months
- Late ovulation: if ovulation comes late, the luteal phase starts late, and waiting for your period can make PMS feel like it's dragging.
- Stress and poor sleep: don't make PMS longer, but make it feel heavier.
- Age: PMS often gets stronger in your late 30s and 40s as perimenopause approaches. See PMS getting worse.
- Coming off or changing contraception: can change how PMS feels for a few months.
When it lasts too long
If you feel symptoms for two weeks before your period every cycle, and they're severe, it could be PMDD. If symptoms are there most of the month and only a little worse before your period, it may be something else, such as depression, anxiety, thyroid problems or perimenopause, made worse by your cycle. See premenstrual exacerbation (PME). Read PMS two weeks before a period for more.
Track it to know your own length
The only way to know how long your PMS lasts is to log it. A quick daily rating of your mood and main symptoms for two or three cycles will show when it starts, when it peaks and when it ends. That record also tells a doctor far more than memory. The PMS symptom diary is a printable way to start.
See a doctor if PMS lasts more than a week or two every cycle and affects your daily life, if symptoms don't ease after your period, or if you feel hopeless. If you have thoughts of harming yourself, call your local emergency number now, or in the US call or text 988.
Frequently asked questions
Can PMS last two weeks?
It can start soon after ovulation for some people. If it's severe and two weeks every cycle, talk to a doctor about PMDD.
Does PMS stop as soon as my period starts?
Often not instantly. Most symptoms fade over the first one to four days of bleeding.
Why do I still have PMS after my period?
Symptoms that last well beyond your period are probably not PMS alone. Track them and talk to a doctor.
When does PMS start?
Usually 5 to 10 days before your period. See when does PMS start.
Sources
- Office on Women's Health: Premenstrual syndrome (PMS)
- ACOG: Premenstrual Syndrome (PMS) FAQ
- NHS: PMS (premenstrual syndrome)
This page is for information only and isn鈥檛 medical advice. If something worries you, please talk to a doctor.
Keep reading
When does PMS start?When does PMS start? Usually 5 to 10 days before your period, after ovulation. How to work out your start day and spot your first warning signs.What is PMS?What is PMS? Premenstrual syndrome is the mix of mood and body symptoms in the days before your period. What causes it, how common it is, and what helps.
PMS symptom diary: what to track for your doctorHow to keep a PMS symptom diary doctors can use: the daily items, the 1 to 6 rating scale, how long to track, and how to read the chart before your visit.
PMS vs PMDD: what's the difference?PMS vs PMDD side by side: symptoms, severity, how common each is, how they're diagnosed and treated, and how to tell which one fits what you feel.
Why do I feel better once my period starts?Feel better when your period starts? The hormone drop behind PMS is over and hormones begin to recover. Why relief comes on day 1 to 3, and what it means