Is anemia with hemoglobin of 90 g/L severe?
Sep 22, 2025
Source: Cainiu Health
Dr. Liu Feng
Introduction
In general, according to the World Health Organization standards, anemia can be diagnosed when hemoglobin levels fall below 130 g/L in adult males and below 120 g/L in adult females. A hemoglobin level of 90 g/L indicates mild anemia, which is usually not considered severe. However, the actual severity should be assessed based on individual circumstances. If a hemoglobin level of 90 g/L is detected, it is recommended to seek medical attention promptly.
Under normal circumstances, according to World Health Organization standards, anemia can be diagnosed when hemoglobin levels fall below 130 g/L in adult males and below 120 g/L in adult females. A hemoglobin level of 90 g/L indicates mild anemia, which is generally not considered severe. However, the actual severity should be assessed based on individual conditions. Detailed analysis is as follows:
Mild anemia usually does not cause obvious symptoms; some individuals may experience slight fatigue, dizziness, or reduced endurance during physical activity. However, if hemoglobin drops rapidly to 90 g/L due to acute blood loss, symptoms such as dizziness and palpitations may occur, indicating a relatively more serious condition.
In addition, the underlying cause of anemia also affects its severity. If it results from deficiency of hematopoietic substances—such as iron-deficiency anemia or megaloblastic anemia—symptoms can typically be improved by supplementing with iron, vitamin B12, or folic acid. However, if anemia is caused by hematological disorders such as aplastic anemia or leukemia, treatment is more complex and the condition tends to be more severe.
If a hemoglobin level of 90 g/L is detected, it is recommended to seek medical attention promptly, complete relevant examinations to determine the cause, and receive standardized treatment under a doctor's guidance.
