Article 7 of China's Marriage Law stipulates that direct blood relatives and collateral blood relatives within three generations are forbidden to marry. The relationship between Cousins belongs to kinship, and marriage is against the law and cannot be married.
First, Cousins can't get married
cousinship
Close relation
Marriage registration,
Annulment of marriage.
Second, the harm of consanguineous marriage
1, consanguineous marriage will greatly increase the probability of recessive genetic diseases. According to relevant data, the recessive genetic diseases of inbred offspring will be 150 times that of non-inbred offspring.
2, the incidence of some polygenic genetic diseases in consanguineous marriages is higher than that in non-consanguineous marriages. According to the survey, the incidence of polygenic diseases such as congenital heart disease and spinal cord fission of anencephalic offspring is about 1.64%, which is higher than 0.57% of non-close married children.
3, the early death rate and deformity rate of children who are married to Cousins are also relatively high.
4, the offspring of consigneous marriage will be poorer in physique, lighter in weight and shorter in height.