After ectopic pregnancy, the first menstrual flow is very few, why excuse me

Female ectopic pregnancy after the phenomenon of menstrual disorders, to consider is caused by gynecological diseases and other reasons, such as endometrial displacement, cervicitis and other diseases, will lead to a reduction in menstrual volume. It is recommended that the best is to go to the hospital to do six sex hormone examination, clear the cause, follow the doctor's advice for treatment.