What is menstrual dysmenorrhea

Dysmenorrhea is a pain associated with menstruation. It can show abdominal pain, backache, lower abdominal pain or other discomfort before and after menstruation or during menstruation, affecting life and work. The occurrence of primary dysmenorrhea is mainly related to abnormal synthesis and release of prostaglandin in the endometrium during menstruation, abnormal uterine contraction, etc. Prostaglandins can cause uncoordinated contraction of uterine smooth muscle, changes in uterine tension, insufficient blood supply, resulting in uterine ischemia and hypoxia, thus showing dysmenorrhea. Secondary dysmenorrhea has a variety of causes, a variety of pelvic diseases are likely to cause dysmenorrhea, the most common cause of endometriosis and adenomyosis.