Alpha-thalassemia trait is a genetic condition where a person inherits one or two mutated genes responsible for producing hemoglobin, the protein in red blood cells that carries oxygen. Individuals with this trait usually have mild anemia but often do not experience significant health issues. People with alpha-thalassemia trait can pass the mutated genes to their children. If both parents carry the trait, there is a risk of having a child with alpha-thalassemia major, a more severe form of the condition. Genetic counseling is recommended for families with a history of thalassemia.