If the maternity ultrasound, pre-pregnancy ultrasound examination of the uterus development is not abnormal, there is no problem, do not need to worry too much, late pregnancy on one side of the abdomen localized bulging, mostly a part of the fetal body, pay attention to the fetal movement, regular maternity can be, if the pre-pregnancy examination of the uterus development is abnormal, on one side of the abdominal bulging uterine contour abnormalities are also associated with this, but also need to be strictly in accordance with the doctor’s requirements of maternity, and make an appointment with the doctor for hospitalization time. If there is no abnormal pregnancy complications in late pregnancy, it is recommended not to sit for a long time and stand for a long time, take side-lying position to rest, appropriate activities, you can change the position appropriately on the left side and the right side, which may improve the relief of one side of the abdominal bulge, and the appropriate activities will help the natural delivery, if there is any abnormal movement of the fetus or the emergence of redness, vaginal fluid, regular abdominal pain and other symptoms of labor, it is necessary to consult the doctor anytime, and hospitalization is necessary to wait for the birth of the baby.