Vaginal bleeding for twenty days is considered to be related to endocrine disorders, preeclampsia, organic pathology of the uterine cavity, cervical pathology, incomplete abortion and so on. According to the different causes, the treatment methods are different, and can be treated by drugs, surgery, laser, scraping and other ways. 1. Endocrine disorders: vaginal bleeding for twenty days or so is related to abnormal secretion of hormone levels caused by ovarian endocrine dysfunction, such as polycystic ovary syndrome, excessive thickening of the uterine lining, etc. Ultrasound and hormone level tests are needed to confirm the diagnosis. You can take ethinyl estradiol cyproterone tablets, progesterone or directly scrape the uterus to stop bleeding. 2. Pre-eclampsia: Married women with vaginal bleeding for twenty days after delayed menstruation and intrauterine pregnancy confirmed by ultrasound are considered to have pre-eclampsia and need oral progesterone to protect the fetus. 3. Organic lesions of the uterine cavity: vaginal bleeding for twenty days is related to subendometrial fibroids, endometrial polyps, etc., which can be diagnosed by hysteroscopy and surgically removed under hysteroscopy. 4. Cervical diseases: vaginal bleeding for twenty days is related to bleeding polyps at the cervical opening or bleeding caused by submucosal fibroids prolapsing from the uterine opening, which can be diagnosed through gynecological examination and can be removed by laser or surgery. 5. Incomplete abortion: in the occurrence of spontaneous abortion, medication abortion or abortion vaginal bleeding for twenty days and incomplete abortion has a certain relationship, can be diagnosed through the ultrasound, to take the uterus surgical treatment. Vaginal bleeding for twenty days, you need to go to the hospital in time to find out the cause of the cause of treatment.