Placenta hypoplasia is not aggravated by taking aspirin. The cause of low placenta is not yet very clear, generally associated with endometrial damage or lesions, such as multiple abortions and scraping, history of uterine surgery, puerperal infection, pelvic inflammatory disease, but also with abnormal uterine morphology, multiple pregnancies and multiple births, advanced age and first births, the pregnant woman’s bad habits, such as smoking, drug abuse and so on. Aspirin in pregnancy is generally used in pregnancy for high blood pressure, thrombosis disorders and immune factors caused by recurrent abortions, etc., take will not aggravate the low placenta. Aspirin during pregnancy must have application indications, aspirin prolonged application may cause gastrointestinal bleeding, coagulation abnormalities, etc., during the application of the necessary review should follow the doctor’s instructions, but also should follow the doctor’s instructions at the appropriate time to stop in a timely manner, so as not to cause bleeding conditions. Pregnant women with placenta previa should undergo a regular obstetric examination, and if vaginal bleeding occurs, they should go to the hospital in a timely manner in order to avoid serious adverse consequences. In addition, the use of aspirin in the clinic should be carried out under the guidance of a doctor, do not take on their own.