Bleeding bright red without abdominal pain at 9 weeks of pregnancy is usually abnormal, and is considered to be caused by diseases such as preeclampsia, ectopic pregnancy, cervical polyps, and other diseases such as hyperemesis gravidarum. Aura miscarriage:Aura miscarriage is due to a variety of factors such as the embryo, the mother and other factors, the patient will appear vaginal bleeding, paroxysmal back pain and other symptoms. 2. Ectopic pregnancy: Ectopic pregnancy is caused by tubal-related lesions, and the main symptoms of patients are menopause and vaginal bleeding. 3. Cervical polyps: Cervical polyps are considered to be caused by chronic inflammation, cervical infection and other factors, patients will have abnormal vaginal bleeding, leukorrhea and other symptoms. 4. Other: gravida, vaginitis, cervicitis and other diseases can also lead to the symptoms of bleeding in the 9th week of pregnancy, bright red without abdominal pain. Therefore, the symptoms of bleeding in the 9th week of pregnancy without abdominal pain may be caused by a variety of diseases. The patient should immediately go to the hospital, identify the cause of the disease and under the guidance of the doctor for treatment.