There is no scientific basis for the claim that a dragon and phoenix fetus has a low IQ. The IQ of a fetus is mainly determined by inborn genetic factors, acquired influences and so on. Genetic factors include the absence of hereditary diseases in the fetus, and if both parents have a high IQ, the child’s IQ will also be relatively high. Acquired influences include the growth and development of the fetus, and the education of the fetus, etc. If the fetus is malnourished, has poor growth and development, and does not receive a good education, etc., all of these conditions may affect the IQ. However, there is no significant correlation between the IQ level of the child and that of the baby, so pregnant women do not need to worry too much, as long as they do all the obstetric examinations on time to ensure the normal development of the fetus. It is recommended to consult a doctor for standardized diagnosis and treatment when necessary.