First of all, the ultrasound should observe the tricuspid valve structure for abnormalities if possible. If the tricuspid valve is structurally normal, a small amount of regurgitation has no effect on the heart and does not need to be treated, and the condition allows for a repeat ultrasound in a few weeks to observe any changes in regurgitation. If the tricuspid valve is abnormal, or if it is combined with a moderate amount of regurgitation or more, ultrasound should be repeated periodically to monitor the regurgitation dynamically. A large amount of tricuspid regurgitation may affect fetal cardiac function and requires special attention for regular follow-up. Ultrasound should be repeated as soon as possible after the birth of the child to clarify the diagnosis. Some children with severe disease may require monitoring and treatment from birth.