Dysmenorrhea generally refers to lower abdominal pain during menstruation. There are two types of dysmenorrhea: primary and secondary. Primary dysmenorrhea involves no substantive lesions; that is, no problems can be identified through examinations, yet menstrual pain occurs. This type is generally due to internal inflammatory factors and pain mediators, such as an increased secretion of prostaglandins, making the pain more pronounced. Secondary dysmenorrhea generally refers to organic lesions, such as adenomyosis or endometrial cysts. In these cases, noticeable menstruation pain also occurs due to organic lesions leading to an increased secretion of pain mediators.