Period Pain6 min read
Why it happens
During a period the muscular wall of the uterus contracts to help the lining come away. Stronger contractions briefly compress the blood vessels supplying it, and that is felt as cramping.
Prostaglandins, the compounds involved in triggering those contractions, are also why period pain often comes with nausea, loose stools, headache or a general flattened feeling. It is one process, not several unrelated symptoms.
Pain is usually strongest in the first day or two, and often eases over the years and after childbirth - though not for everyone.
What tends to help
- Heat. A hot water bottle or heat patch on the lower abdomen or back is one of the better-supported simple measures.
- Gentle movement. Walking, stretching or light exercise helps many people, despite the instinct to stay still.
- Over-the-counter painkillers. Anti-inflammatories such as ibuprofen suit many people, and paracetamol is an alternative. A pharmacist can tell you what is appropriate for you - this matters if you have asthma, stomach or kidney problems, are pregnant, or take other medicines.
- Rest and sleep. Pain is reliably worse on very little sleep.
- Hormonal contraception. For some people this reduces period pain considerably. It is a conversation with a clinician, not a self-prescription.
What does not
Avoiding baths, swimming or exercise has no basis and generally makes things worse rather than better.
No pad, liner or menstrual product treats period pain. A product can make a day more comfortable to get through; it does not act on the cause, and anything sold on the claim that it does is worth reading twice.
When it is worth investigating
Some cramping is common. Pain that regularly stops you doing ordinary things is not something you simply have to accept, and treating it as inevitable is the main reason underlying causes go unfound for years.
Worth booking an appointment if:
- The pain stops you going to school or work, or ordinary painkillers do not touch it.
- It has become markedly worse than it used to be.
- It happens outside your period, or during sex.
- It comes with very heavy bleeding, or bleeding between periods.
Conditions such as endometriosis, adenomyosis and fibroids can cause severe period pain. They are diagnosed by a clinician after examination and often imaging - not by a website, and not by a symptom list. The reason to know they exist is that they are worth asking about.