There are several possibilities for bleeding after 15 days of miscarriage: 1, infection of the uterine cavity, if you don’t pay attention to good rest after miscarriage or have sexual intercourse too early, this kind of situation will easily lead to infection of the uterine cavity and there will be bleeding. This kind of bleeding is generally less and the bleeding will be accompanied by a small stomach swelling and pain. 2, embryonic tissue residue, if there is embryonic tissue residue in the uterine cavity after miscarriage, bleeding may occur in the 15 days after miscarriage, the color of the bleeding tends to be more bright red. 3, the uterus is not good, the uterus will contract after a normal miscarriage, if it can not reach a good contraction to 15 days is not contracted well, then there will be Bleeding.