A small amount of tricuspid regurgitation usually does not have much effect on the baby, but it is necessary to go to the hospital to check for congenital heart disease or congenital tricuspid valve malformation. The tricuspid valve is a single valve between the right atrium and the right ventricle, which serves to prevent blood from backing up into the right ventricle during ventricular systole, and its incomplete closure may result in blood flowing back into the right ventricle. However, mild regurgitation in either children or adults does not particularly affect the function of the heart, so it can be checked regularly if no discomfort occurs. However, if a child has tricuspid regurgitation, it is necessary to pay attention to it and go to the hospital for further examination to check whether the baby has congenital heart disease or congenital tricuspid valve deformity and whether it has any effect on the heart function. If it has, then it is necessary to carry out treatments such as surgical blockage of oversized ventricular septal defects and tricuspid valve repair for tricuspid valve deformity according to the type of heart disease and the condition of the heart disease.