There are many birth defects, ranging from minor abnormalities (e.g. Red-green colour blindness) to serious, sometimes fatal disorders.
Zininzi iingxaki abazalwa nazo abantwana ezifana neengxaki ezingephi (umz. Ukungawuboni umbala obomvu-luhlaza) ukusa kwiingxaki ezimandundu nezibulalayo maxa wambi.