貧血とは、ヘモグロビン濃度が特定のカットオフポイントを下回る状態を指します。^1,2

• カットオフポイントは、年齢や性別、
• 生理的状態（妊娠）、
• 喫煙習慣、
• および、評価対象集団が居住している高度によって異なります

ヘモグロビンは、酸素を運ぶ赤血球の成分です。貧血になると、酸素を運ぶ能力が低下し、それが原因で様々な症状が現れます。

一般的な症状には、疲労感、倦怠感、蒼白、息切れ、めまいなどがあります。貧血は、女性や妊婦、慢性疾患を持つ人に多く見られます。

世界で約 18 億人が貧血に苦しんでいます。³

貧血の早期診断とそれに続く適切な治療は、以下を低減すること役立ちます。

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2. Combatting anaemia through improved measurement, diagnosis and reporting. Accessed on May 9, 2025.
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4. Lopez A, Cacoub P, Macdougall IC, et al . Iron deficiency anaemia. Lancet. 2015;387(10021):907–916.
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7. Baratam P, et al. Impact of iron deficiency anemia on inpatient mortality, hospital cost and length of stay in patient with luminal gastrointestinal cancers: data from the Healthcare Cost and Utilization Project from 1999–2014. Blood. 2017;130(Suppl 1):4669.
8. Choosing Wisely – Five Things Physicians and Patients Should Question. Society for the Advancement of Patient Blood Management. https://www.choosingwisely.org/societies/society-for-the-advancement-of-blood-management/. [Accessed April 21, 2023].
9. Lasocki S, et al. Management and prevention of anemia (acute bleeding excluded) in adult critical care patients. Annals of Intensive Care. (2020) 10:97 https://doi.org/10.1186/s13613-020-00711-6.