Recently period does not come, but old abdominal pain how to return a responsibility

Female menstruation does not come, but there are always symptoms of abdominal pain, if there is sexual life, need to consider whether it is caused by pregnancy, can be ruled out through morning urine test, if there is no pregnancy, may be caused by gynecological diseases, such as uterine fibroids, cervical inflammation, adnexal cysts and other lesions will also lead to irregular menstruation.