A small amount of fetal tricuspid regurgitation and a strong light spot in the left ventricle may be tricuspid valve closure insufficiency. However, parents do not need to worry excessively, as the fetus develops, the condition may disappear. If a small amount of fetal tricuspid regurgitation with a strong light spot in the left ventricle is found during a pregnancy test, it may indicate tricuspid valve closure insufficiency. However, this abnormality of heart development in the fetus may get better or even disappear as the fetus develops. Only a very small number of children are more serious and require surgical treatment. Parents do not need to worry too much. Pregnant women should keep their mood happy during pregnancy, which is conducive to the healthy development of the fetus. If other abnormalities or congenital malformations of the fetus are detected during ultrasound examination during pregnancy, it is necessary to consult a doctor in time and choose the treatment under the doctor’s guidance.