Dysmenorrhea can be divided into two kinds of primary and secondary. Primary dysmenorrhea refers to the initial development of women’s menstrual dysmenorrhea on emerging phenomenon often as married and will be improved accordingly. Secondary dysmenorrhea is the reproductive system lesions that occur after the dysmenorrhea, its performance varies with different causes, the general location of deep pain, and dull.

Caused by common causes of secondary dysmenorrhea include:

1, cervical or intrauterine adhesions: common in repeated flow of people, in patients with endometrial tuberculosis.

2, reproductive tract abnormalities: excessive uterus forward, vaginal diaphragm and other mechanical obstruction, so that poor blood flow-induced dysmenorrhea.

3, pelvic inflammatory disease: persistent lower abdominal pain, may be radiation from the waist, sometimes with a sense of the anus bulge.

4, Endometriosis: good fat in 30 to 45-year-old middle-aged women, because endometrial went to a place outside the uterus, “camp.” Thickened by the effects of ovarian hormones, bleeding, because they do not flow in vitro and stimulate the surrounding tissue, causing uterine muscle contraction or tissue fibrosis induced dysmenorrhea.

5, adenomyoma: more common than 40 years of age, more maternal, many women flow curettage.