Addressing Anemia in High-Altitude Populations: Global Impact, Prevalence, Challenges, and Potential Solutions

Anemia, a global health challenge affecting a quarter of the global population, results from diverse causes such as nutritional deficiencies, chronic diseases, and genetic factors. It disproportionately impacts women of reproductive age and children, leading to significant morbidity and mortality. While high-altitude populations face unique diagnostic challenges due to natural hemoglobin increases, the current World Health Organization cutoffs often overestimate anemia in these regions. Altitude corrections significantly alter prevalence rates, particularly in South American children, leading to misdiagnosis. Proposed solutions include population-specific thresholds and iron status markers like serum hepcidin, though economic constraints and limited test availability remain challenges. Tailored strategies informed by genetic research highlight adaptations in Tibetan and Ethiopian highlanders, demonstrating the need for region-specific approaches. Socioeconomic factors exacerbate anemia in high-altitude areas. Addressing anemia requires updated diagnostic criteria, personalized strategies, and increased awareness to ensure accurate assessments and interventions in diverse populations, especially those residing at high altitudes.