If menstrual pain does not occur at menarche, but occurs with sexual intercourse and marriage, it is called secondary dysmenorrhea, also known as organic dysmenorrhea. It refers to dysmenorrhea caused by organic lesions in the reproductive organs of women. The most common gynecological diseases that cause secondary dysmenorrhea are endometriosis, adenomyosis, submucosal fibroids, cervical adhesions, uterine adhesions, cervical canal stenosis, genital tract malformations, placement of contraceptive rings and pelvic inflammatory disease. For the treatment of secondary dysmenorrhea, the first choice should be to treat the disease causing the dysmenorrhea, and the dysmenorrhea will disappear immediately after the disease is treated.