The vaginal bleeding will generally stop in about 7 days after the abortion. If there is still vaginal bleeding in 20 days, it may be caused by menstrual flow, or it may be caused by disease factors, so you should go to the hospital in time to check and confirm the diagnosis and treat the cause. The possible causes are intrauterine infection, uterine cavity residue, poor uterine rejuvenation, cervical erosion, uterine fibroids, etc., as follows: 1. Menstrual flow: After the abortion, the uterus gradually recovers, and it will also gradually resume The onset of menstruation occurs about one month after abortion, but the time of menstruation after abortion varies, some patients may have menstruation in 20 days, no special treatment is needed; 2, intrauterine infection: there may be prolonged vaginal bleeding, foul smell, fever, accompanied by abdominal pressure pain symptoms, should be routine blood and cervical smear examination to confirm the diagnosis, follow the doctor’s instructions to actively anti-infection treatment, such as oral cefuroxime, 3.Uterine cavity residue: the amount of vaginal bleeding is sometimes more and sometimes less, if accompanied by symptoms of paroxysmal abdominal pain, you should go to the hospital to do ultrasound examination to confirm the diagnosis, you can follow the doctor’s instructions to use pro-uterine contraction drugs, such as motherwort granules, post-partum stasis granules, etc., and if necessary, clean the uterus again; 4.Uterine regeneration dysplasia: there can be a lot of vaginal bleeding, accompanied by symptoms of lumbago and lower abdominal cramps, you should perform diagnostic scraping to confirm the diagnosis, treatment can follow the doctor’s instructions to apply The diagnosis should be confirmed by diagnostic scraping, and the treatment can be done by applying antibiotics and pro-uterine contraction drugs, such as roxithromycin and misoprostol, etc.; 5. The diagnosis should be confirmed by ultrasound, MRI and hysterosalpingogram, and medication can be applied to reduce the size of fibroids and improve excessive menstrual bleeding by applying mifepristone and indomethacin as prescribed by the doctor. After the abortion, you should take rest and eat nutritious food such as lean meat, fish, eggs, milk, soy products, animal liver, and fresh vegetables and fruits. Avoid bathing and sexual intercourse for one month, and pay attention to keeping the vulva clean and dry.