Seeing red at 11 weeks of pregnancy may be caused by miscarriage at first sign, vaginitis, cervical polyps and other reasons, which can be treated by birth control and the use of medication. 1. Pre-eclampsia: If a pregnant woman is overworked or has large emotional fluctuations during pregnancy, resulting in hormonal instability in the body, the situation of seeing red at 11 weeks of pregnancy may occur. At this time, pregnant women should pay attention to bed rest, but also follow the doctor’s instructions to take progesterone capsules and other drugs to protect the fetus treatment. 2. Vaginitis: pathogenic bacteria invade the vagina, stimulate the local mucosa, may lead to vaginal bleeding, thus appearing 11 weeks pregnant with red, pregnant women also often appear vulvar itching and other symptoms. At this time, should be clear pathogenic bacteria, if the bacterial infection, can follow the doctor’s instructions to use metronidazole and other drugs. 3. Cervical polyps: Because polyps are rich in blood vessels, after being stimulated, it is easy to bleed, which leads to the occurrence of 11 weeks pregnant with red. At this time, the pregnant woman should pay attention to avoid coitus, if bleeding occurs repeatedly, you can also take the surgical method of treatment. If you are pregnant, it is recommended that you seek medical advice, under the guidance of the doctor, improve the relevant examination, to clarify the cause of the disease, symptomatic treatment.