What is the normal reference range for hematocrit?

Aug 18, 2025 Source: Cainiu Health

Dr. Liu Feng

Introduction

Men generally have a higher metabolic rate and red blood cell count than women. Their normal hematocrit range is relatively higher, maintained between 40% and 50%. This is related to factors such as male hormone levels and muscle mass, which can meet their higher oxygen demands. Due to physiological differences, women have slightly fewer red blood cells than men, and their normal hematocrit range is somewhat lower.

Generally, the normal range of hematocrit values differs between genders. For males, it is approximately 40%-50%, while for females, it is around 35%-45%. Detailed analysis is as follows:

Males typically have higher metabolic rates and red blood cell counts than females. Therefore, their normal hematocrit range is relatively higher, maintained between 40%-50%. This is related to hormone levels, muscle mass, and other factors in males, meeting their higher oxygen demands.

Due to physiological characteristics such as blood loss during the menstrual cycle, females generally have fewer red blood cells than males. Thus, their normal hematocrit range is slightly lower, usually between 35%-45%. For pregnant women, this value may physiologically decrease due to increased blood volume.

When measuring hematocrit, a comprehensive assessment based on individual circumstances is necessary. Slight fluctuations in a single test result are usually not a cause for excessive concern. However, if the value significantly deviates from the normal range or is accompanied by other abnormal indicators, timely medical consultation and further examinations are recommended.

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Which indicator is used to assess anemia?

In general, anemia is diagnosed by evaluating indicators such as hemoglobin concentration, red blood cell count, hematocrit, mean corpuscular volume (MCV), and mean corpuscular hemoglobin (MCH). In daily life, maintaining a balanced diet rich in iron, vitamin B₁₂, and folic acid—such as lean meat, animal liver, and leafy green vegetables—along with regular作息 (sleep schedule), and moderate exercise can help maintain normal blood parameters.

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Which value in a complete blood count (CBC) should be checked for anemia?

In general, when patients with anemia undergo a routine blood test, key indicators such as red blood cell count, hemoglobin concentration, hematocrit, mean corpuscular volume (MCV), and mean corpuscular hemoglobin (MCH) are primarily evaluated. These parameters reflect the presence and type of anemia from different perspectives. After testing, the results can be comprehensively analyzed to assess the anemia condition, and daily management may include dietary adjustments.

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Why is the hematocrit level high in newborns, and what should be done?

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