Let's be honest: "take some paracetamol and get on with it" has never been decent advice for the kind of period pain that has you cancelling plans and living attached to a hot water bottle. Whether your cramps fade by lunchtime or flatten you for two days a month, period pain is common. Common doesn't mean you have to just put up with it.

Here's the fast version, because you didn't come here for a lecture. Period pain (the medical term is dysmenorrhoea) happens because hormone-like chemicals called prostaglandins trigger your uterus to contract. There's a genuinely useful toolkit for easing it: heat, movement, over-the-counter pain relief, magnesium, an anti-inflammatory way of eating and TENS machines all have evidence behind them. If you have PCOS, your pain pattern can look a bit different to the "textbook" version, and there's a point where period pain stops being normal and starts being worth a proper conversation with your GP. We're covering all of it below, in plain English, with the evidence attached, not vague wellness waffle.

None of this is about gritting your teeth through it for another thirty years. Understanding what's actually happening inside your body, and what's genuinely worth trying, changes how you handle the next period, and the one after that. Let's get into it.

Why Does Period Pain Actually Happen?

Short answer: Prostaglandins, hormone-like chemicals, make your uterus contract to shed its lining, and that squeezing is what you feel as cramps.

Every month, if pregnancy hasn't happened, your uterus needs to shed its lining. To do that, it produces prostaglandins, hormone-like compounds that make the uterine muscle contract.^[1] Think of it as your uterus squeezing to push the lining out.

The snag is that more prostaglandins usually means stronger contractions, and stronger contractions can briefly restrict blood flow, and oxygen, to the uterine muscle itself. That temporary dip is a big part of what you feel as cramping pain, similar in principle to how any muscle cramps when it's briefly starved of blood flow.

Some people simply produce more prostaglandins than others, which is one reason period pain varies so wildly between two people with otherwise similar cycles. Prostaglandins don't stay neatly in the uterus, either. They can affect nearby organs, which is why period pain often comes with nausea, loose stools, headaches or lower back pain riding along with the cramps. None of that is you being dramatic. It's chemistry.

For most people, this is what's called primary dysmenorrhoea: uncomfortable, sometimes debilitating for a day or two, but not a sign of an underlying condition. For others, similar or worse pain is secondary dysmenorrhoea, meaning something else, like endometriosis or fibroids, is driving it. We'll get into how to tell the difference further down, because it genuinely matters.

A few other things can turn the volume up on ordinary period pain too. Stress raises cortisol, which interacts with the hormones controlling your cycle. Low iron from heavy periods can leave you feeling wrung out on top of the cramping. Caffeine and alcohol can tighten blood vessels and worsen inflammation for some people. None of these cause period pain on their own, but they're worth knowing about if your pain seems worse than it used to be.

What Are the Best Ways to Relieve Period Pain?

Short answer: Heat, movement, appropriate pain relief, magnesium, anti-inflammatory eating and TENS machines all have real evidence behind them.

Heat: still the best-studied option

The research on this is actually pretty clear: heat applied to your lower abdomen relaxes the uterine muscle and improves blood flow, which takes the edge off cramping in a similar way to some over-the-counter pain relief in trials comparing the two.^[2] A hot water bottle, a wearable heat pad or even a warm bath all count. It's low-effort, cheap and about as close to a first-line remedy as period pain has. Adhesive heat patches under clothing mean you can get the same effect through a work day or a school day without anyone knowing.

Movement and gentle exercise

Curling into a ball feels like the only option some days, and that's fair. But gentle movement, walking, stretching, yoga, even a slow dance around the kitchen, encourages blood flow and triggers the release of endorphins, your body's own natural pain-easing chemicals. You don't need a HIIT class. A twenty-minute walk or a few stretches can be enough to shift things, and building regular movement into the weeks before your period tends to make the worst days a little more bearable too.

Over-the-counter pain relief

Non-steroidal anti-inflammatory options, such as ibuprofen, work differently to paracetamol: they reduce prostaglandin production at the source rather than just dulling the pain signal, which is part of why they tend to be more effective for period-specific cramping. Always check with a pharmacist about what's suitable for you, the right dose and how it fits with anything else you're taking, particularly if you have a stomach condition, take other regular medication, or aren't sure which option is appropriate.

Magnesium

Magnesium is involved in muscle relaxation and nervous system regulation, and research looking at it specifically for period pain has shown promising, if still developing, results.^[3] It's not a magic fix. But it gives your body what it's often missing. That gap tends to be widest if your diet leans heavily on processed food and light on leafy greens, nuts and seeds, or if you're losing magnesium through stress, poor sleep or heavy sweating without replacing it.

An anti-inflammatory way of eating

You don't need a complicated meal plan. Leaning toward oily fish, leafy greens, colourful vegetables, nuts, seeds and healthy fats, and easing back on ultra-processed food, added sugar and excess alcohol in the days before and during your period, may help support your body's inflammatory response. Hydration matters here too: being dehydrated can make cramping feel worse. Omega-3 fatty acids, found in oily fish or a fish oil supplement, are one of the more researched additions if you want somewhere specific to start.

TENS machines

A TENS (transcutaneous electrical nerve stimulation) machine sends small electrical pulses through pads on your skin, which can interrupt pain signals travelling to your brain and encourage your body to release its own endorphins. Trial evidence is moderate to strong, and plenty of people find it a genuinely useful drug-free option they can control themselves.^[4]

Sleep and stress

Chronic stress and poor sleep don't cause period pain, but they can turn the volume up on it. Cortisol and other stress hormones interact with your reproductive hormones, and poor sleep lowers your general pain threshold. Protecting your sleep and building in some kind of stress-reduction practice, even five minutes of breathing exercises, is quietly one of the most underrated tools here. It won't replace heat or pain relief on a genuinely bad day, but stacked alongside them over a few cycles, it tends to make a noticeable difference.

Method	How it helps	Evidence strength
Heat (hot water bottle, heat pad)	Relaxes uterine muscle, improves blood flow	Strong
Gentle movement	Boosts blood flow, releases endorphins	Moderate
Over-the-counter pain relief (e.g. ibuprofen)	Reduces prostaglandin production	Strong
Magnesium	May help support muscle relaxation	Moderate, developing
Anti-inflammatory eating pattern	May help support lower background inflammation	Emerging
TENS machine	Interrupts pain signals, boosts endorphins	Moderate to strong
Sleep and stress reduction	Supports hormone regulation, pain tolerance	Moderate

How Does PCOS Affect Period Pain?

Short answer: PCOS is linked with higher inflammation and irregular ovulation, which can make period pain heavier, more erratic and harder to predict.

If you have PCOS, your period pain might not follow the "textbook" pattern the leaflets describe, and that's exactly why so many people with PCOS spend years being told nothing is wrong. You're not imagining it.

PCOS is linked with higher background inflammation and, for many people, insulin resistance, both of which can influence how your body produces and responds to prostaglandins.^[5] Add in irregular ovulation, meaning your hormone levels don't follow a predictable monthly rhythm, and you can end up with pain that's unpredictable in timing, intensity, or both. Some months might be manageable. Others might floor you, seemingly out of nowhere.

There's also the hormonal side of things. PCOS often involves higher androgen levels and a disrupted oestrogen-progesterone balance, and that hormonal noise can affect how thick your uterine lining builds up, how heavy a period is, and how much cramping comes with it. Heavier, more irregular bleeding tends to mean more prostaglandin activity, which tends to mean more pain.

Painkillers can take the edge off a bad day, and there's no shame in reaching for them. But if inflammation and hormonal imbalance are part of your pain picture, it's worth addressing what's driving the pattern alongside managing the pain itself. That might mean working with a GP on insulin resistance, adjusting your diet toward lower-inflammation choices, prioritising sleep and stress management, or looking at targeted nutritional support.

It's also worth saying that PCOS-related pain is often dismissed alongside PCOS-related everything else, wrongly blamed on weight, lumped in with "just PCOS things" and left at that. Pain deserves its own attention, separate from any conversation about weight or lifestyle, and you're allowed to ask your GP to treat it as its own symptom worth investigating properly.

If PCOS-linked inflammation and hormone swings are part of your pain picture, a daily myo-inositol supplement like Myoplus may help support hormonal balance as part of the bigger picture. It's not a replacement for medical care, and it won't undo years of being dismissed on its own, but it's one piece worth knowing about.

When Is Period Pain Not Normal?

Short answer: Pain that resists usual measures, disrupts daily life, or comes with heavy bleeding or bowel and bladder symptoms is worth raising with a GP.

Here's the honest bit. Some period pain is simply period pain: unpleasant, inconvenient, manageable with the tools above. But sometimes, pain is different. Your body is trying to tell you something. It's worth knowing when to listen more closely, and when to stop assuming you're just unlucky.

If your pain doesn't ease with heat, movement, appropriate over-the-counter pain relief and rest, if it regularly stops you going to work, school or doing the things you'd normally do, or if it comes alongside heavy bleeding, pain during sex, pain when you wee or open your bowels, or pain that shows up outside your period too, that combination is a classic pattern associated with endometriosis, a condition where tissue similar to the uterine lining grows elsewhere in the body.^[6] It can also point toward fibroids, adenomyosis or something else worth investigating.

This matters because the average time to an endometriosis diagnosis in the UK is still edging toward nine years from first symptoms, and a large amount of that delay comes from people being told their pain is normal, that they're exaggerating, or to simply take some painkillers, when they were actually describing something that needed proper investigation.^[7] If that sounds familiar, you're in good company, and it's not a reflection of you being weak or dramatic.

Whatever it turns out to be, that's useful information, not a life sentence. If any of this resonates, book a GP appointment and describe your pain in specific, concrete terms: how many days it lasts, what it stops you doing, what else comes with it and what you've already tried. Ask directly whether endometriosis or another underlying cause should be investigated. You deserve to be taken seriously the first time you raise it, not the fifth.

What's the Practical Day-to-Day Toolkit for Period Pain?

Short answer: Start with heat and movement, layer in pain relief or magnesium if needed, and see a GP when self-care alone stops being enough.

Nobody needs another forty-seven step wellness routine. Here's a realistic order of operations for an average painful period.

Start here, every time

• Heat on your lower abdomen or lower back, as early as you feel cramping start, not after it's already bad
• Gentle movement if you can manage it: a short walk, some stretching, or just changing position regularly
• Hydration and a proper meal, tempting as an all-day biscuit tin is

Layer these in if you need more

• Appropriate over-the-counter pain relief, discussed with a pharmacist if you're unsure what suits you
• A TENS machine, especially useful for daytime pain when you can't exactly nap with a hot water bottle
• Magnesium and an anti-inflammatory eating pattern, built up as a baseline between periods rather than reached for only in the moment

When self-care isn't enough

If you're combining several of the above and still getting knocked flat every month, that's a signal, not a personal failing. Self-care has a ceiling, and hitting it doesn't mean you're doing it wrong. It means it's time to loop in a GP, particularly if your pain is getting worse over time, disrupting work or study, or showing up alongside the heavier bleeding or bowel and bladder symptoms mentioned above. Track your cycle and your pain for two or three months before that appointment if you can. Specific details, dates, severity, what helps and what doesn't, make it much harder to be waved off with a shrug. A simple notes app entry each cycle is enough. You don't need a fancy app or a spreadsheet, just consistency.

Frequently Asked Questions

What is the fastest way to relieve period pain?
Heat is usually the fastest, most reliable option. A hot water bottle or heat pad on your lower abdomen can start easing cramping within fifteen to twenty minutes by relaxing the uterine muscle and improving blood flow. Pairing heat with appropriate over-the-counter pain relief, taken early rather than once pain has peaked, tends to work faster than either alone.

Why are my periods so painful with PCOS?
PCOS is linked with higher background inflammation and, often, insulin resistance and irregular ovulation, all of which can affect how much prostaglandin your body produces and how predictable your cycle is. That can mean heavier, more erratic or more intense pain than the typical dysmenorrhoea pattern.

When is period pain not normal?
When it doesn't respond to heat, movement and appropriate pain relief, regularly disrupts your daily life, or comes with heavy bleeding, pain during sex, or bowel or bladder symptoms. That pattern is worth raising with a GP, as it can point toward endometriosis or another underlying condition.

Does diet affect period pain?
It can. An eating pattern built around oily fish, leafy greens, colourful vegetables, nuts and seeds, with less ultra-processed food and added sugar, may help support your body's inflammatory response around your period. It isn't an instant fix, but it's a genuinely useful piece of the picture.

Can supplements help with period pain?
Certain nutrients, magnesium in particular, are involved in muscle relaxation and nervous system regulation, and may help support how your body manages period pain as part of a wider approach. Supplements work alongside, not instead of, the basics like heat, movement and appropriate pain relief.

Is a TENS machine worth it for period pain?
For a lot of people, yes. TENS machines are drug-free, reusable and let you control the intensity yourself, which makes them a solid option for daytime pain when a hot water bottle isn't practical. Evidence for pain relief is moderate to strong, with little downside to trying one.

How long should period pain last?
For most people, primary dysmenorrhoea peaks in the first day or two of a period and eases from there. Pain that lasts most of your cycle, gets progressively worse over time, or doesn't ease at all isn't the typical pattern and is worth checking with a GP.

Does exercise make period pain worse or better?
Better, for most people, even though it's the last thing you feel like doing. Gentle movement increases blood flow and triggers endorphin release, which can ease cramping rather than worsen it. Intense exercise on the worst days isn't necessary. A walk or gentle stretching is usually plenty, and pushing through a full workout when you're doubled over rarely helps anyone.

Conclusion

Period pain is common, but common was never supposed to mean just get on with it. Heat, movement, appropriate over-the-counter pain relief, magnesium, an anti-inflammatory way of eating, TENS and decent sleep are all genuinely evidence-backed tools, and most people feel a difference from combining a few of them consistently rather than reaching for one thing in a panic once a month.

If you have PCOS, your pain pattern deserves its own attention, not just a generic leaflet. And if your pain has never responded to any of this, or comes with symptoms beyond the usual cramping, that's worth a proper conversation with your GP, not another year of pushing through it quietly.

You know your body better than any leaflet does. Trust that, and use it to ask better questions. None of this needs to be complicated. It's just information most of us were never taught, and every bit of it you pick up makes the next period, and the next GP appointment if you need one, a little easier to navigate.

Further Reading

• What Is PCOS? A Plain-English Guide
• PCOS and Insulin Resistance Explained
• Missed or Irregular Periods: What's Going On

References

1. NICE. Dysmenorrhoea: Clinical Knowledge Summary. cks.nice.org.uk/topics/dysmenorrhoea
2. NHS. Period pain. nhs.uk/conditions/period-pain
3. Pattanittum P, Kunyanone N, Brown J, et al. Dietary supplements for dysmenorrhoea. Cochrane Database of Systematic Reviews, 2016. cochranelibrary.com
4. Han S, et al. Transcutaneous electrical nerve stimulation (TENS) for pain control in women with primary dysmenorrhoea. Cochrane Database of Systematic Reviews, 2024. cochranelibrary.com
5. NHS. Polycystic ovary syndrome (PCOS). nhs.uk/conditions/polycystic-ovary-syndrome-pcos
6. NICE. Endometriosis: diagnosis and management, NG73. nice.org.uk/guidance/ng73
7. Endometriosis UK. Endometriosis in the UK: Time for change. endometriosis-uk.org

This article is for general information only and does not replace advice from your GP or a qualified healthcare professional. Food supplements should not be used as a substitute for a varied and balanced diet. If you're pregnant, breastfeeding, taking medication or managing a diagnosed health condition, check with a healthcare professional before starting a new supplement.

References