The sudden appearance of bright red blood at 10 weeks of pregnancy should be promptly examined to find the cause, to determine whether it is caused by miscarriage, cervical polyp, ectopic pregnancy, etc., and treated according to the different causes. 1. Miscarriage: The fetus is unstable before the 12th week of pregnancy and is prone to miscarriage. Miscarriage is mainly manifested by vaginal bleeding and lower abdominal pain. If all the tests support preeclampsia, but the development of the embryo is still good, we should take dextroprogesterone and vitamin E capsules to protect the fetus; the embryo is not well developed, there is no fetal heart, buds can be cleared for treatment, or we can wait for nature to take its course and expel it naturally. 2. Cervical polyps: cervical blood supply increases during pregnancy, and cervical congestion is more pronounced under the influence of estrogen, such as cervical polyps, there may be recurrent vaginal bleeding symptoms. Gynecological examination can determine the cervical polyps, such as polyps, large, long, can be used to remove the hemostat; small size, difficult to remove the temporary pressure to stop bleeding, mid-pregnancy and then consider the polyp out. 3, ectopic pregnancy: pre-pregnancy tubal inflammation, chronic pelvic inflammatory disease, no examination after menopause, does not exclude ectopic pregnancy. Ectopic pregnancy can cause vaginal bleeding and lower abdominal pain. The disease can be determined by ultrasound, blood HCG measurement and posterior fornix puncture, etc. After diagnosis, laparoscopic surgical treatment is generally required, but more internal bleeding and manifestations of shock should be emergency open surgery. In short, bleeding at 10 weeks of pregnancy is not caused by one aspect, and this situation often requires routine examination and then treatment, and pay attention to vulvar cleansing during treatment.