Table of contents
1. What are period cramps?
2. What causes period cramps?
3. How much period pain is ‘normal’?
4. How common are period cramps?
5. How can I treat, prevent or stop my period pain?
Illustrated by Erin Rommel, Sabrina Bezerra & Ralitza Nikolova
What are period cramps?
I’ll always remember a moment when I was reading Purple Hibiscus by Chimamanda Ngozi Adichie, a few years ago. At one point, the novel’s protagonist, Kambili, has period cramps. “Cramps racked my belly,” Kambili tells us. “I imagined someone with buckteeth rhythmically biting deep into my stomach walls and letting go.” And I thought: that’s it. That’s the best description I’ve ever read for the period pain I experience almost every month.
I’ve always found the singular, excruciating pain of period cramps hard to describe – hence why Adichie’s description struck such a chord with me. Sometimes, it’s like a steady burn: like someone’s slowly, steadily, repeatedly ripping a plaster away from my uterus. Sometimes it’s sheer agony: like my lower abdomen is being slowly, steadily, repeatedly sliced open.
Essentially, period cramps describe the pain experienced by uterus-owners during their period. “Period cramps can start in the days running up to your period and during it; usually easing as your period comes to an end,” says Dr Samantha Wild, GP and Clinical Lead for Women’s Health at Bupa Health Clinics. “The pain tends to affect your lower abdomen, and in some it also spreads to their lower back and thighs.” (I get pain around my upper thighs when the cramps are particularly bad.)
Painful periods can manifest differently for everyone. As Yoppie pointed out, there are many types of period pain. Some may experience an ongoing dull ache; others might suffer from a sharp poking sensation; others could notice an unpleasantly intense spasm.
And the period pain symptoms don’t stop there. “Along with cramps, some may get other symptoms before or during their period, including fatigue, diarrhea, nausea or sickness, headaches, bloating and feeling light-headed or more emotional than usual,” Wild continues.

What causes period cramps?
“Around the time of your period, your womb has more prostaglandins in it,” explains Wild. “Prostaglandins are chemicals that cause your womb’s muscles to tighten and help shed your womb’s lining. As these muscles tighten, the amount of blood and oxygen in your womb temporarily reduces, which triggers pain – this is known as primary dysmenorrhea.”
In other words, primary dysmenorrhea is all about uterine contractions – a phrase you may have heard before in conjunction with period pain – which help the uterus shed its lining each month.
But period cramps aren’t necessarily always down to prostaglandins. “Some also get period cramps caused by an underlying medical condition like endometriosis or fibroids – this is known as secondary dysmenorrhea,” explains Wild. “Those with an underlying health condition experience more painful periods, as well as period pains at other times in their cycle, and worsening pain as their period progresses. It tends to affect those aged 30 to 45 more commonly.” Another possible cause of severe period pain could be PCOS: polycystic ovary syndrome.
More on secondary dysmenorrhea later. In the meantime, a third possible cause of period pain is posited by Wild: “Period cramps can also be caused by contraceptive devices like the coil, particularly in the first few months after it’s fitted,” she says.
