The soft indicators of ultrasound are the abnormalities that can be seen on ultrasound, except for the obvious malformations, hand and foot malformations, or abnormalities caused by the development of various systems, such as kidney and liver abnormalities, which can be considered as a normal variation of some phenomena. However, this variation is different from the normal fetal structure, but it is not an abnormality, it will be indicated by ultrasound, and the ultrasound doctor will report it, indicating that there are these abnormalities, such as a strong light spot in the heart, which does not affect the fetal heart structure, but it may indicate an increased risk of fetal chromosomal abnormalities, and there may also be some non-chromosomal abnormalities, such as whether it will be combined with other This is why we call this type of ultrasound findings between normal and abnormal soft indicators. The most common ones are nasal bone hypoplasia, strong spots in the left ventricle, mild tricuspid regurgitation, small amount of pericardial effusion, enhanced intestinal echo, single umbilical artery, mild ventricular dilatation, etc. We have to follow up these ultrasound findings continuously and the patient has to go to a prenatal diagnostic specialist for consultation to understand that such ultrasound abnormalities are not called diseases and then we have to do further tests for her if necessary. If necessary, we have to do further tests, such as non-invasive DNA, or interventional puncture, amniotic fluid, cord blood, etc., or some more, such as MRI, etc.