Inbreeding in consanguineous marriages tends to lead to chromosomal abnormalities, and the chances of developing genetic diseases will increase, so the chances of producing deformed children in the offspring will increase. Most of the factors for the emergence of deformed children are related to genetics and the environment. Couples with consanguineous marriages, because of the similarity of chromosomes, the probability of chromosomal abnormalities in the offspring will increase, and also hereditary diseases will occur. So the chances of having a family history of genetic diseases and deformed children will also be higher. That is why consanguineous marriages are generally not recommended in the clinic. In addition, it should be noted that there are more causes of fetal malformations, if abnormalities are found in the maternity test, it is recommended to consult a doctor in time, under the guidance of the doctor for targeted treatment.