Dysmenorrhea is divided into primary and secondary dysmenorrhea. Primary dysmenorrhea is often considered to be pain in the abdomen and lower back caused by increased secretion of prostaglandins during a woman’s menstruation, which stimulates. When the pain is more severe, it may stimulate the vagus nerve excitation and lead to stomach pain, or nausea and vomiting. Also, in secondary dysmenorrhea, it is usually considered to be caused by endometriosis, such as ovarian chocolate cysts or adenomyosis. Since menstrual cramps can be particularly severe at this time, they may also stimulate pain in the stomach or even the entire lower abdomen or abdomen, so corresponding pain relief treatment will be needed, and ibuprofen extended-release capsules can be taken.