Blood type refers to the antigen type on the surface of blood components, which is usually divided into four blood types: A, B, O and AB. The blood type of the child has little to do with the husband and wife, so there will be no problems such as deformity and developmental disorder of the child because of the same blood type of both sides, so don't worry too much. Husband and wife's blood type has no effect on the child's blood type, because the child's blood type is determined by parents' genes.