There are more serious causes of dysmenorrhea, which need to be accurately diagnosed so as to effectively target the causes and foci and intervene to relieve the symptoms. The common causes are as follows: 1. Endometriosis: can cause episodes of dysmenorrhea; 2. Adenomyosis: is also a factor causing dysmenorrhea; 3. Uterine fibroids; 4. Adhesions: cervical, cervical orifice adhesions, cervical erosion or cervical polyps can cause severe dysmenorrhea; 5. Pelvic infections: such as chronic pelvic inflammatory disease and adnexitis cause episodes of dysmenorrhea. Pelvic stasis and poor blood circulation are important causes of dysmenorrhea.