What causes period pain?

Dr Sarah Jarvis MBE Most women have some pain during periods. The pain is often mild but, in about 1 in 10 women, the pain is severe enough to affect day-to-day activities. The pain can be so severe that they are unable to go to school or work. For more information, go to https://patient.info/health/periods-and-period-problems/period-pain-dysmenorrhoea