Lower Back Pain Before and During Period
Lower back pain is a common period symptom caused by uterine contractions radiating to the lower back. For some people it is more prominent than abdominal cramping.
Medical disclaimer
This content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Dawn Phase is not a medical device. Always consult a qualified healthcare professional with questions about your health.
What causes it
Prostaglandins cause the uterus to contract during menstruation. These contractions can radiate to the lower back and upper thighs. More severe back pain can be associated with endometriosis, fibroids, or adenomyosis.
Track this symptom across your cycle
Dawn Phase logs Lower Back Pain Before and During Period patterns and shows you correlations — privately. No data selling.
Start free — no card neededHow to track it
Log pain intensity, location, and timing relative to your period start. Note whether it begins before your period or only once flow starts. Consistent severe back pain warrants investigation.
When to see a doctor
See a doctor if back pain is severe, debilitating, begins well before your period, or is getting worse cycle to cycle — these patterns can indicate endometriosis or adenomyosis.
Related symptoms
Related conditions
Track this symptom with Dawn Phase
Log symptoms daily and see how they connect to your cycle phases.
Start tracking free →This content is for informational purposes only and is not a substitute for professional medical advice.