Fetal tricuspid valve mild regurgitation most of the physiological phenomenon, general regular observation can be, a small number of may be due to fetal congenital heart disease, it is recommended that further examination to rule out chromosomal diseases and cardiac structure abnormalities. Fetal tricuspid valve mild regurgitation, more common in mid-pregnancy fetal cardiac ultrasound, most of them belong to the normal physiological regurgitation, with the increase of gestational weeks, most of the regurgitation will disappear, and will not affect the child’s growth and development; if the regurgitation occurs too early, we need to further check to rule out chromosomal diseases; if the regurgitation still exists in the late pregnancy, it is recommended that we check the echocardiography, except for the structural abnormalities of the heart. If fetal tricuspid regurgitation is detected by ultrasound during labor and delivery, the patient should follow the doctor’s instructions to have the necessary review or further examination according to the situation.