After why finishing stream of people 45 days, still did not come menstruation

Usually in the abortion operation after about a month will appear menstrual resurgence phenomenon, but because each person's constitution is different so there will be a certain difference, but the abortion 40 days still did not appear menstrual resurgence is abnormal phenomenon. If 45 days still no menstruation, may be caused by endometrial or cervical lesions, it is recommended to check in time.