Period Pain (Dysmenorrhea)
Cramps that ache, throb, or stop you in your tracks? Painful periods are extremely common — but pain that disrupts your life isn't something you simply have to put up with.
General education, not a diagnosis. SHELY is pre-launch — “Talk to someone” adds you to our experts waitlist; we don’t offer bookings yet.
Period pain — known medically as dysmenorrhea — happens when the muscular wall of your uterus tightens to shed its lining. These contractions are driven by hormone-like chemicals called prostaglandins; higher levels mean stronger cramps, which is why some women feel barely a twinge while others are floored.
Most period pain is primary dysmenorrhea — cramps with no underlying disease, usually starting a day or two before bleeding and easing within a few days. Secondary dysmenorrhea is pain caused by a condition such as endometriosis, adenomyosis, or fibroids, and it often starts later in life, lasts longer, or gets worse over time.
Cramps that respond to a hot-water bottle and rest are normal. Pain that stops you going to work or school, doesn't ease with usual painkillers, or is getting steadily worse deserves a proper look — you shouldn't have to plan your month around dread.
Signs & symptoms
- Cramping or throbbing pain in the lower abdomen, often starting just before your period
- Pain that radiates to the lower back and inner thighs
- A dull, constant ache between sharper waves of cramping
- Nausea, loose stools, or an upset stomach during the first days
- Headache or light-headedness
- Fatigue and feeling generally run-down
Types
Primary dysmenorrhea
Common period cramps with no underlying disease, caused by natural prostaglandin release. Typically starts within a year or two of your first period and often eases with age or after childbirth.
Secondary dysmenorrhea
Pain caused by an underlying condition such as endometriosis, adenomyosis, or fibroids. It often begins later, lasts longer than the bleed, or worsens year on year — a sign to get checked.
What causes it
- High levels of prostaglandins triggering strong uterine contractions
- Contractions briefly cutting off oxygen to the uterine muscle
- Endometriosis — a common cause of secondary, worsening period pain
- Adenomyosis — uterine-lining tissue growing into the muscle wall
- Fibroids or, rarely, pelvic inflammatory disease
- Younger age and starting periods early can mean more intense cramps
When to seek help
See a doctor if cramps regularly keep you from school, work, or daily activities; if usual painkillers (like ibuprofen) don't help; if the pain is getting worse over time or appearing on days you're not bleeding; or if it's a new kind of pain after years of comfortable periods. Severe pain with heavy bleeding, pain during sex, or trouble conceiving can point to endometriosis or fibroids worth investigating.
How SHELY helps
SHELY Care
Log your pain and cycle to see whether cramps are predictable or worsening — useful evidence if you see a doctor.
Symptom Checker
Talk through your symptoms to understand whether your pain looks like ordinary cramps or something worth investigating.
SHELY Varsity
Plain-language guides on pain relief that actually works, from heat and movement to when medication makes sense.
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Pick a topic to explore what we know about Period Pain (Dysmenorrhea). Educational only — not a diagnosis.
- Cramping or throbbing pain in the lower abdomen, often starting just before your period
- Pain that radiates to the lower back and inner thighs
- A dull, constant ache between sharper waves of cramping
- Nausea, loose stools, or an upset stomach during the first days
- Headache or light-headedness
- Fatigue and feeling generally run-down
- High levels of prostaglandins triggering strong uterine contractions
- Contractions briefly cutting off oxygen to the uterine muscle
- Endometriosis — a common cause of secondary, worsening period pain
- Adenomyosis — uterine-lining tissue growing into the muscle wall
- Fibroids or, rarely, pelvic inflammatory disease
- Younger age and starting periods early can mean more intense cramps
Primary dysmenorrhea
Common period cramps with no underlying disease, caused by natural prostaglandin release. Typically starts within a year or two of your first period and often eases with age or after childbirth.
Secondary dysmenorrhea
Pain caused by an underlying condition such as endometriosis, adenomyosis, or fibroids. It often begins later, lasts longer than the bleed, or worsens year on year — a sign to get checked.
See a doctor if cramps regularly keep you from school, work, or daily activities; if usual painkillers (like ibuprofen) don't help; if the pain is getting worse over time or appearing on days you're not bleeding; or if it's a new kind of pain after years of comfortable periods. Severe pain with heavy bleeding, pain during sex, or trouble conceiving can point to endometriosis or fibroids worth investigating.
SHELY Care
Log your pain and cycle to see whether cramps are predictable or worsening — useful evidence if you see a doctor.
Symptom Checker
Talk through your symptoms to understand whether your pain looks like ordinary cramps or something worth investigating.
SHELY Varsity
Plain-language guides on pain relief that actually works, from heat and movement to when medication makes sense.
Symptoms
- Cramping or throbbing pain in the lower abdomen, often starting just before your period
- Pain that radiates to the lower back and inner thighs
- A dull, constant ache between sharper waves of cramping
- Nausea, loose stools, or an upset stomach during the first days
- Headache or light-headedness
- Fatigue and feeling generally run-down
Causes
- High levels of prostaglandins triggering strong uterine contractions
- Contractions briefly cutting off oxygen to the uterine muscle
- Endometriosis — a common cause of secondary, worsening period pain
- Adenomyosis — uterine-lining tissue growing into the muscle wall
- Fibroids or, rarely, pelvic inflammatory disease
- Younger age and starting periods early can mean more intense cramps
Types
Primary dysmenorrhea
Common period cramps with no underlying disease, caused by natural prostaglandin release. Typically starts within a year or two of your first period and often eases with age or after childbirth.
Secondary dysmenorrhea
Pain caused by an underlying condition such as endometriosis, adenomyosis, or fibroids. It often begins later, lasts longer than the bleed, or worsens year on year — a sign to get checked.
When to seek care
See a doctor if cramps regularly keep you from school, work, or daily activities; if usual painkillers (like ibuprofen) don't help; if the pain is getting worse over time or appearing on days you're not bleeding; or if it's a new kind of pain after years of comfortable periods. Severe pain with heavy bleeding, pain during sex, or trouble conceiving can point to endometriosis or fibroids worth investigating.
How SHELY helps
SHELY Care
Log your pain and cycle to see whether cramps are predictable or worsening — useful evidence if you see a doctor.
Symptom Checker
Talk through your symptoms to understand whether your pain looks like ordinary cramps or something worth investigating.
SHELY Varsity
Plain-language guides on pain relief that actually works, from heat and movement to when medication makes sense.
Frequently asked
Are painful periods normal?
Mild-to-moderate cramps are very common and usually normal. But pain that stops your day, doesn't respond to painkillers, or is getting worse over time is not something to just endure — it's worth a check-up.
What's the fastest way to ease cramps at home?
Heat (a hot-water bottle or warm bath), gentle movement or stretching, and an anti-inflammatory painkiller like ibuprofen taken early often help most. Staying hydrated and rested matters too.
Could my bad cramps be endometriosis?
Possibly. Pain that's severe, getting worse, lasts beyond your bleed, or comes with pain during sex or bowel movements can be a sign of endometriosis and is worth raising with a doctor.
Will period pain improve as I get older?
Primary dysmenorrhea often eases with age and sometimes after childbirth. Pain caused by an underlying condition usually won't improve on its own and needs treatment.
✔ Written from established medical guidance — independent clinical review in progress
This guide is for general education and does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your health. In an emergency or crisis, see our crisis support resources.