A decreased RBC mass (anemia) may be caused by blood loss, hemolysis, or decreased production.
红细胞数量降低(贫血)可能是由于失血，溶血，或产生数量减少。
2
Excessive oxidant stress may overload the protective HMP shunt or methemoglobin reductase pathways, causing Heinz body hemolysis or methemoglobin formation, respectively.