Suddenly bleeding a little bit in the ninth week of pregnancy can be given fertility preservation treatment, termination of pregnancy or anti-infection treatment. 1. Foetus preservation treatment: nine weeks pregnant suddenly bleeding a little bit may be caused by preeclampsia, usually with abdominal pain and a small amount of vaginal bleeding symptoms, can be combined with ultrasound and blood HCG examination and given progesterone, dydrogesterone tablets, vitamin E and other drugs to preservation of the fetus treatment, follow up on the development of the embryo. 2. Termination of pregnancy: nine weeks of pregnancy, sudden bleeding should also check whether it is caused by inevitable abortion, such as checking the HCG doubling is not good, the embryo has stopped developing, need to do timely termination of pregnancy by surgical evacuation. 3. anti-infection treatment: nine weeks pregnant with a little bleeding may also be cervicitis or cervical polyps and other gynecological diseases caused by cefixime dispersible tablets, amoxicillin and other anti-inflammatory drugs under the guidance of the doctor, for frequent bleeding caused by polyps can be surgically removed, but try to be conservative treatment during pregnancy first. Nine weeks pregnant if there is a slight bleeding, through appropriate rest can not be relieved, showing a persistent aggravation of the trend, and accompanied by abdominal pain manifestation, should be early to consult the doctor, a clear diagnosis of the causative factors, under the guidance of the doctor for symptomatic treatment and conditioning.