The very small amount of bleeding without abdominal pain in the 11th week of pregnancy may be caused by preeclampsia, cervical polyps, vaginitis, etc., and it is necessary to take birth control, anti-inflammatory and other treatments according to the situation and the cause of the disease. 1. Pre-eclampsia: Vaginal bleeding is one of the more common manifestations of pre-eclampsia, usually accompanied by abdominal pain, but some patients do not have abdominal pain, the need for timely ultrasound, blood tests, etc., to clarify the situation. If the amount of bleeding is small, you can keep bed rest; if the bleeding is large, you need to use dextroprogesterone tablets, progesterone and other fertility preservation treatment. 2. Cervical polyps: If there are cervical polyps before pregnancy, spontaneous bleeding may occur during pregnancy, but the bleeding is usually small. If the bleeding persists or increases, you need to be evaluated by a doctor and choose the right time for surgical removal. 3. Vaginitis: when the vagina is stimulated by inflammation for a long time, the mucous membrane is edematous and congested, there will also be bleeding, according to the doctor’s instructions, clotrimazole suppositories, miconazole suppositories and other medications. Bleeding during the 11th week of pregnancy is an abnormal condition, which needs to be taken seriously and treated according to the doctor’s instructions.