Bleeding during intercourse 20 days after an abortion is definitely not normal. Normally, you should not have intercourse 20 days after the abortion surgery, because it is forbidden to have intercourse within 1 month after the abortion surgery. This is because coitus may lead to poor uterine recovery or infection of the uterine cavity, which is confirmed by bleeding after coitus. This situation may be caused by poor uterine recovery, or caused by residue in the uterine cavity, or caused by infection in the uterine cavity. In this case, it is recommended to go to the hospital to do ultrasound, gynecological examination and other related examinations, according to the results of the symptomatic treatment. If it is caused by poor uterine regrowth, it is recommended to use motherwort and hemostatic drugs for symptomatic treatment, and also need to take oral antibiotics for 3-5 days to prevent infection.