Fetal position low four-dimensional examination can not be through appropriate activities, change position or eat some food to make the fetal activity to change position before examination. 1. Appropriate activities: If it is found that the fetus is in a lying position in the uterine cavity during the examination, the pregnant woman can change the low fetal position through some moderate light physical activities, such as walking slowly, resting or turning over appropriately. 2. Change the position: If the fetal position is low, but there is no other discomfort, the low fetal position can be relieved by the head-high-feet-low position, which is mainly through the effect of gravity, so that the fetus moves to the upper part of the uterus. 3. Eat some food: you can eat some chocolate, cake and other sweets to replenish the body’s energy, the pregnant woman’s blood sugar will rise, the fetus will also get energy, so that the activity increases, which helps to change the fetal position. Four-dimensional examination is one of the very important examination programs during pregnancy, must follow the doctor’s instructions in a timely manner. At the same time, the examination process is affected by the position of the fetus may take some time, so be sure to maintain a good mood and cooperate with the doctor to complete the examination.