Vaginal bleeding brown blood in early pregnancy may be caused by preeclampsia, ectopic pregnancy, cervical polyps and other factors, the specific bleeding time needs to be judged according to the cause of the disease. Such as aura miscarriage, if the pregnant woman in a timely manner under the guidance of the doctor to protect the fetus, generally pregnant women in the treatment of 3 to 10 days after the symptoms of vaginal bleeding brown blood will be relieved; such as ectopic pregnancy, the time of vaginal bleeding usually lasts for 3 to 5 days. 1. Pre-eclampsia: early pregnancy with pre-eclampsia vaginal flow of brown blood, if the pregnant woman in a timely manner under the guidance of the doctor with progesterone, dydrogesterone and other progestogens to protect the fetus, generally pregnant women in the treatment of 3 ~ 10 days after the vaginal flow of brown blood symptoms will be relieved. If the pregnant woman has a preeclampsia after ultrasound examination of the embryo has stopped developing, you need to take the removal of uterus or curettage treatment, generally patients will improve the symptoms of vaginal bleeding brown blood within 7 days after the operation. 2. Ectopic pregnancy: If ectopic pregnancy leads to brown vaginal blood in early pregnancy, the vaginal bleeding time usually lasts for 3~5 days. 3. Cervical polyps: pregnant women in early pregnancy cervical polyps will also appear in the performance of the vaginal bleeding brown blood, the majority of patients with vaginal bleeding symptoms will last 3 to 7 days. Early in pregnancy, vaginal bleeding brown blood, it is recommended to go to the hospital in a timely manner to check, clear the cause of the disease, and then follow the doctor’s instructions to deal with the treatment.