The general causes of dysmenorrhea include endometriosis or cold in the uterus, or stagnation of qi and blood stasis, all of which can lead to painful menstruation. Clinically, if dysmenorrhea is generally mild abdominal discomfort without affecting study or work, this mild dysmenorrhea is generally not a big problem. If dysmenorrhea shows a gradually worsening trend, it generally requires a visit to the hospital for a color ultrasound to check for endometriosis. If dysmenorrhea caused by endometriosis is present, it will show a worsening trend and in severe cases, may include symptoms of nausea and vomiting, so this situation is generally caused by a displacement of the endometrial lining. Additionally, some patients may experience cold hands and feet, and cold abdominal pain during the painful menstruation, which is mostly considered to be caused by cold in the uterus. Furthermore, stagnation of qi and blood stasis can also lead to dysmenorrhea, typically presenting with blood clots during menstruation, where pain relief follows the discharge of blood clots, suggesting a high possibility of being caused by stagnation of qi and blood stasis.