Hanyeol Glossary · Korean Medicine Concepts

Blood Deficiency

Related terms: state of deficient blood · 血虛 · blood deficiency pattern

Blood Deficiency (Hyeol-heo) is a Korean medicine category that groups various clues such as dizziness, paleness, palpitations, dryness, or numbness. It does not mean the same thing as anemia confirmed by blood tests, so they must be distinguished from each other.

How is this different from anemia?

Anemia is diagnosed based on criteria such as hemoglobin levels in a blood test. Blood Deficiency is a concept that interprets a cluster of various symptoms through Korean medicine interviews and examinations; therefore, these two terms cannot be used interchangeably.

What other clues are considered?

In addition to cold sensations or numbness, we examine dizziness, throbbing, dryness of the skin and eyes, sleep patterns, and changes in menstruation.

Could tests be necessary?

If there is paleness, shortness of breath, severe fatigue, or persistent dizziness, tests to identify medical causes such as anemia may be prioritized.

What is recorded during the medical evaluation?

We look at situations where fatigue and dizziness worsen, menstrual volume and bleeding, dietary status, dryness of the skin and eyes, numbness, and sleep. If blood test results are available, they are interpreted separately from the Blood Deficiency pattern identification.

Why Blood Deficiency is not used interchangeably with anemia

Blood Deficiency is a category in Korean medicine that explains a combination of various symptoms and examination findings, such as paleness, dizziness, throbbing, dryness, and menstrual changes. It does not refer to a test result showing a deficiency of hemoglobin or red blood cells in the blood; therefore, hearing the expression "blood is deficient" should not be interpreted as an iron deficiency.

Commonly confused terms and their differences
Anemia is a medical condition confirmed by blood tests to find causes such as bleeding, iron deficiency, or chronic diseases. While some expressions may overlap with Blood Deficiency, a diagnosis of one does not automatically imply the other. If dizziness and fatigue persist, causes including anemia should be tested first.
Information to record before your visit
Please record the time when fatigue and dizziness occur, shortness of breath when climbing stairs, throbbing, the color of your skin and lips, and menstrual volume or other bleeding. You must also provide recent hemoglobin and iron test results, as well as any iron supplements or Korean herbal medicine you are taking, to avoid duplicate medication and side effects.
Scope of this material
WHO data was used to define the scope of the traditional medicine term Blood Deficiency, and NHLBI data was used to distinguish the scope of medical confirmation for anemia symptoms. The explanation of Blood Deficiency is not a basis for diagnosing anemia or recommending iron supplements. Chest pain, fainting, severe shortness of breath, or continuous bleeding must be checked immediately.

Official References

Choi Yeon-seung, Chief Director of Baekrokdam Korean Medicine Clinic

Medical staff who wrote and reviewed this article

Choi Yeon-seung

Chief Director of Baekrokdam Korean Medicine Clinic

The meaning of Blood Deficiency, the scope of differential diagnosis, and patient guidance expressions have been reviewed. The last review date was August 25, 2026.

  • Graduated from Kyung Hee University College of Korean Medicine
  • Providing Korean medicine treatment since 2010
  • Symptom treatment from the perspective of heat-cold balance and constitution

Read More

Check the guides where these terms are used

Symptom and Disease GuideMy hands and feet feel cold

Symptom and Disease GuideNumbness in hands and feet / Numbness in feet

Heat and Cold ColumnCauses of cold fingertips, and Korean medicine treatment based on color changes, numbness, or neck pain

This distinguishes cold fingertips into Raynaud's phenomenon, nerve compression, or systemic coldness, and explains Korean herbal medicine and acupuncture treatments tailored to finger color changes, numbness, and neck and shoulder pain.

Heat and Cold ColumnMy knees feel cold: Why blood circulation supplements alone may not solve it and what are the causes of cold sensitivity?

Beyond simple blood circulation issues, we analyze knee coldness from the perspective of internal coldness and suggest improvement directions based on constitutional characteristics and lifestyle habits.

Heat and Cold ColumnWhy do I still feel coldness in my lower body even when test results are normal?

Beyond simple sensitivity to cold, we examine the Korean medicine causes of coldness in the lower body and toes, and provide self-check criteria and lifestyle management methods.

Medical GuideWhen my hands and feet are cold and chilly, should I only think of it as cold hypersensitivity (Sujok Naengjeung)?

Symptoms of cold hands and feet vary, even under the single term 'cold hypersensitivity' (sujok-naengjeung). By distinguishing between color changes, differences between sides, numbness, and general fatigue, and by examining digestion, sleep, and lower abdominal coldness when tests show no clear cause, we can determine if Korean medicine treatment is appropriate.

Medical GuideWhat should I record before a consultation for heat or cold sensations?

Even if the cause was not revealed in tests, you can describe your discomfort in detail. By noting the onset time, location, times when symptoms worsen, and changes in sweating, numbness, dry mouth, or sleep, and by preparing previous test results and medications, we can more accurately examine the patterns of heat and cold and the direction of Korean medicine treatment.

Summary and review information for this page

Reviewing Medical Staff

Choi Yeon-seung, Doctor of Korean MedicineChief Director · Editor of Korean Medicine Atlas · BRC Researcher

Page Summary

Blood Deficiency (Hyeol-heo) is a Korean medicine category that groups various clues such as dizziness, paleness, palpitations, dryness, or numbness. It does not mean the same thing as anemia confirmed by blood tests, so they must be distinguished from each other.

Key Points

  • Why Blood deficiency is not used interchangeably with anemia: Blood deficiency is a Korean medicine category that groups various symptoms and examination findings, such as paleness, dizziness, throbbing, dryness, and menstrual changes. It does not refer to test results showing a lack of hemoglobin or red blood cells in the blood; therefore, hearing the expression "Blood is deficient" should not be interpreted as an iron deficiency.
  • Difference from similar terms: Anemia is a medical condition confirmed by blood tests to find causes such as bleeding, iron deficiency, or chronic disease. While some expressions may overlap with Blood deficiency, a diagnosis of one does not automatically imply the other. If dizziness and fatigue persist, causes including anemia should be tested first.
  • Scope of verification: WHO data was used to define the scope of the traditional medicine term 'Blood deficiency,' while NHLBI data was used to define the medical verification scope of anemia symptoms. The explanation of Blood deficiency is not a basis for diagnosing anemia or recommending iron supplements. Chest pain, fainting, severe shortness of breath, or continuous bleeding must be evaluated immediately.

References cited on this page

Baekrokdam Heat-Cold Glossary

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