Whereas some birth defects are conspicuous (e.g. dwarfism), others are hidden (e.g. Congenital heart defects).
Lo gama ezinye iingxaki azalwa nazo umntwana zicace gca (umz. ukuba mfutshane ngokugqithisileyo), ezinye zifihlakele (umz. Iingxaki zentliziyo ezihamba nofuzo).