Fetal intestinal dilatation will be eliminated after expulsion if it is caused by fetal stool, but it will not be eliminated on its own if it is caused by digestive tract abnormalities. Fetal intestinal dilatation is usually not eliminated during pregnancy. However, if the dilatation of the fetal intestinal tube is not obvious and does not continue to dilate subsequently, it may be due to fetal stool, and it will be eliminated by expelling the fetal stool after delivery. However, if the dilatation is more pronounced and reaches 30 millimeters or more, ultrasound is a soft indicator that does not confirm the presence of digestive malformations in the fetus. Therefore, a detailed examination is needed to clarify the cause of dilatation, and if fetal gastrointestinal malformation is diagnosed, surgical treatment is usually needed to correct it. To summarize, if fetal intestinal dilatation occurs, it is recommended that the next step of examination be carried out in a timely manner to identify the cause of the disease and treat it accordingly.