Position of the uterus is too buckling, poor blood flow, rain, wade or too cold food cold and so on, can cause dysmenorrhea. Type of Dysmenorrhea by conditioning or slightly increased with age, most will gradually reduce or self-healing. However, there are some dysmenorrhea is secondary to some gynecological organic diseases, such as pelvic inflammatory disease, uterine fibroids, endometriosis.

The so-called endometriosis, or endometrial tissue and normal uterine cavity to leave their positions, appears in the human body in any other parts of the growth and development. Study its causes are more complex, such as abortion, abortion surgery, postoperative cervical stenosis or atresia, or the uterus after the bend backward to the blood outflow obstruction, prompting endometrial fragments with the blood flowing back through the fallopian tube and grown in many parts of the pelvic are can lead to disease. Then cause dysmenorrhea and infertility.

Thus, little or do not do surgical abortions and induced abortions in a timely manner to correct the uterus after the deformation, as soon as possible a clear cause and treatment can prevent and reduce its occurrence. In addition, the adolescent girls in the menstrual period should be adequate rest, avoid strenuous exercise, bogey afraid of the cold fear of cold, which can effectively prevent the occurrence of endometriosis.