What is a birth certificate? The birth certificate refers to the certification document required for legal pregnancy and childbirth under the implementation of the family planning policy. The issuance of a birth certificate is related to the individual\’s age, marital status, fertility policy and other related factors. After establishing the legality of pregnancy and childbirth, the application for a birth certificate can effectively protect the legitimate rights and interests of pregnant women and newborns and avoid subsequent birth-related problems.