If the bleeding is still occurring one month after the medical abortion, it may be related to incomplete medical abortion, incomplete uterine regeneration, uterine cavity infection, trophoblastic disease and other factors. 1. Incomplete medical abortion: Patients with incomplete medical abortion due to uterine position, multiple abortions, and scarring of the anterior uterine wall may have irregular vaginal bleeding, perform pelvic ultrasound, hysteroscopy and other examinations to determine the size of the residue. If you are afraid of clearing the uterus or if you have just undergone surgery and are not suitable for clearing the uterus, you can undergo conservative treatment through drugs first, and if there are more residues, you need to undergo clearing surgery to remove the pregnancy products; 2. Incomplete uterine regeneration: when the uterus is incomplete due to large fetal months or multiple miscarriages, the contraction of the uterus is weakened and the pregnancy products cannot be expelled from the body in time, resulting in prolonged bleeding. The patient should be examined by internal gynecological examination, abdominal ultrasound, and routine blood tests. Oral or intravenous infusion of uterine contraction, antibiotic drugs for treatment, and also physical therapy to promote uterine contraction; 3. Uterine cavity infection: acute infection of the uterine cavity due to vaginal pH change after medical abortion, bleeding wounds, low immunity, etc., or patients themselves have gynecological inflammation, which may occur one month after medical abortion is still bleeding, vaginal discharge examination can be performed, oral or intravenous infusion antibiotic anti-infection treatment. Pay attention to hygiene in life and have a reasonable diet; 4. Trophoblastic diseases: patients suffering from gestational trophoblastic diseases, such as staphylococcus, may have persistent bleeding after medical abortion, and the disease can be diagnosed by serum HCG determination, ultrasound and other examinations, and should be removed immediately after diagnosis, and chemotherapy can be administered if necessary. After a medical abortion, it is important to pay attention to hygiene to prevent secondary infection, and to take care of the body, not to get out of bed too early, strenuous exercise and intercourse, and to eat more nutritious food.