1, if the fetal nasal bone dysplasia is examined, it belongs to congenital dysplasia. There are many reasons for abnormal fetal development, such as abnormal fetal development, chromosome abnormality, virus infection and so on.

2. Causes of Fetal Dysplasia Fetal Dysplasia generally refers to the fact that the weight of the fetus is too large or too small, and it is a serious problem for the fetus to stop developing. Pregnant women should receive various examinations during pregnancy on time according to their own physical conditions and reactions to avoid the occurrence of fetal arrest.

3. Considering that it is normal for the fetus to be 3.4 mm long when it is 24 weeks old. Please rest assured; At this time, we should pay attention to the rationality of diet, have a good rest, exercise properly and keep a good mood.

4. If you check the fetal nasal bone dysplasia, it belongs to congenital dysplasia. There are many reasons for abnormal fetal development, such as abnormal fetal development, chromosome abnormality, virus infection and so on.

5, it is best to do a multi-dimensional color ultrasound, you can see more clearly, and then it depends. Even if there is a problem with the nasal bone, it is not a serious deformity and can be completely corrected. Calcium supplementation is needed in the second trimester to avoid calcium deficiency affecting fetal development.

6. Three-dimensional ultrasound showed nasal bone dysplasia. Fetal nasal bone dysplasia suggests the possibility of fetal chromosome abnormality. You should choose a high-level hospital to do it again If nasal bone dysplasia is true, further examination should be done, such as chromosome examination and/or reexamination of color Doppler ultrasound. If the fetal nasal bone is dysplasia, it suggests that there is the possibility of 2 1 ~ trisomy syndrome, so we should pay attention to it and go to a professional pediatric hospital for further examination.