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The scope of not allowing consanguineous marriage
Time:2025-08-28 Views:738
（1） Marriage is not allowed between parents and children, grandparents and grandchildren, or between grandparents and grandchildren.
（2） You cannot marry your uncle, aunt, uncle, aunt, or aunt.
（3） You cannot marry your own brothers, sisters, cousins, sisters and sisters.
（4） Brothers and sisters who share the same origin as their parents (including half siblings and half siblings). Children of the same parents cannot get married.
（5） Uncles, uncles, aunts, and nieces of different generations. Uncle cannot marry the daughter of a brother.
（6） Auntie cannot marry her brother's son; Uncle cannot marry sister's daughter; Auntie cannot marry her sister's son.
Direct blood relatives and collateral blood relatives within three generations are prohibited from getting married. Direct blood relatives refer to the blood relatives who have given birth to oneself or the descendants of one's own offspring, that is, the blood relatives from one's own body or from one's own body. Tracing back to parents, grandparents, great grandparents, etc., and down to children, grandchildren, great grandchildren, etc., they are all direct blood relatives. Collateral blood relatives refer to blood relatives who have no relationship between two parties but are born from the same common ancestor.
（1） Both men and women must be completely voluntary, without either party forcing the other or any third party interfering;
（2） Both men and women must reach the legal age for marriage, with men not earlier than 22 years old and women not earlier than 20 years old;
（3） Prohibition of bigamy and implementation of monogamy;
（4） Both parties do not have direct blood relatives or collateral blood relatives within three generations;
（5） Both parties do not have any diseases that are medically considered unsuitable for marriage.
III
The influence of consanguinity on offspring is mainly manifested in the increase of the incidence rate of recessive genetic diseases, as well as the increased risk of congenital malformations, premature birth and abortion, and infant death. When evaluating the harm of consanguineous marriage pairing groups, it is usually necessary to calculate the average consanguineous marriage coefficient (represented by a value) based on the investigation of various consanguineous marriages. The larger the value of a, the greater the harm to the group. Generally, a value of 0.1 (i.e. 1%) is considered high. In developed and open societies, the alpha value is usually lower, while in closed, isolated, or societies with special customs, the alpha value is higher. From 1980 to 1981, a survey of the Han population in Beijing showed a consanguineous marriage rate of 1% and an average inbreeding coefficient of 0.1%.
The above is a detailed introduction by the editor of Fanneng Law Firm regarding the scope of non consanguineous marriage. According to the above statement, according to Chinese law, the scope of non consanguineous marriage includes one's own direct blood relatives and collateral blood relatives within three generations. If you have any other legal questions, please feel free to consult Fanneng Law Firm. We will have professional lawyers to answer your questions. Sichuan Faneng Law Firm is dedicated to serving you.