After stream of people two months still did not come menstruation how to return a responsibility

After abortion normal in 30~40 days or so women will resume menstrual cramps, if two months after menstruation did not recover, timely medical treatment, may be caused by cervical adhesion, need to be treated by doctor intervention, because abortion will lead to female postoperative secondary infection, and cervical damage, but also lead to cervical adhesion.