Gastric bubble extrusion fetal heart right shift may be due to fetal congenital pyloric hypertrophy, temporary gastric bubble enlargement, diaphragmatic hernia and other reasons, should be combined with the actual situation of the fetus, targeted treatment. 1. Fetal congenital pyloric hypertrophy: the gastric follicle will have abnormal development when the fetus has congenital pyloric hypertrophy, and the space of the stomach cavity may also increase due to the pyloric hypertrophy, which will probably lead to an increase in the amount of gastric content, and therefore cause pressure on the heart, and cause the fetus to have rightward displacement of the heart. 2. Temporary enlargement of gastric vesicles: if there is too much content trapped in the stomach of the fetus, more gas may be generated due to the continuous decomposition of the content, which may lead to a continuous increase in the size of the gastric vesicles of the fetus, and may also generate a rightward shift of the fetal heart due to the extrusion of the gastric vesicles. 3. Diaphragmatic hernia: If the fetal diaphragm has dysplasia, it may lead to rightward displacement of the fetal heart due to pressure changes in the abdominal cavity.