How to distinguish is menstruation or gynecological inflammation caused by uterine blood

In general, menstrual bleeding is relatively regular, usually once a month and maintained in about five to seven days. If the patient is gynecological inflammation caused by uterine bleeding, usually there is no rule, from the blood situation can not be diagnosed as which caused the bleeding phenomenon. Patients should judge according to their menstrual cycle, so as to be able to distinguish which situation caused the bleeding phenomenon.