Black blood after 20 days after abortion may be bruise discharge, intrauterine residue, drug factors and so on.
1. Blood discharge: under normal circumstances, there will be a small amount of vaginal bleeding within 14 days after the abortion, this is because the uterus gradually contracted in the late period, resulting in the gradual discharge of blood in the uterine cavity caused by the discharge of the blood, if there is still black-brown discharge 20 days after the operation, consider the uterus is not good, it is recommended to consult a doctor for examination in a timely manner, and if necessary, active treatment.
2. Intrauterine residue: If the bleeding is relatively large, it is considered to be caused by intrauterine residue.
3. Drug factors: If you have intercourse too soon after abortion, in order to avoid pregnancy, taking emergency contraceptive pills or short-acting contraceptive drugs, it will also trigger sudden black blood flow and other manifestations.
There may be other reasons for the black blood after 20 days after the abortion, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.