What is the cause of bleeding in the same room after menstruation?

Menstruation just ended after the occurrence of vaginal bleeding symptoms, common cause is due to cervical opening has not been completely closed, vaginal residual a little menstrual blood, in the same room caused. But do not rule out the possibility of other reasons, such as cervicitis, cervical erosion or uterine fibroids, etc., may also occur contact bleeding.