PROBLEM TO BE SOLVED: To provide methods for the treatment of anemia.SOLUTION: The methods comprise administration of antagonists of growth differentiation factor 11 (GDF11; also known as bone morphogenetic protein 11 (BMP11)) to a subject in need of the treatment.SELECTED DRAWING: None【課題】貧血の治療方法の提供。【解決手段】該治療を必要とする対象への成長分化因子11(GDF11;別名、骨形態形成タンパク質11(BMP11))のアンタゴニストの投与を含む、方法である。【選択図】なし