The effects of placenta subluxation include preterm labor, antepartum hemorrhage, and intrauterine infection. 1. Preterm labor: when a pregnant woman experiences placenta subluxation, if the subluxation is very low, it may cause the uterus to experience contractions, thus causing preterm labor. 2. Antenatal hemorrhage: when the placenta moves down, it may cause bleeding, which may endanger the life of the pregnant woman and the fetus in serious cases. 3. Intrauterine infections: Placenta subluxation in pregnant women may also lead to gynecological diseases. Because the placenta and the lower part of the uterus stripped to cause bleeding, bacteria and other pathogens from the stripped surface into the uterine cavity, may cause intrauterine infection. Pregnant women with placenta subluxation should seek timely medical attention and follow the doctor’s instructions to avoid dangerous situations.