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Skin Disease Glossary · Body Patterns in Korean Medicine

Hyeol-yeol (Blood Heat)

Related terms · 血熱 · Hyeol-yeol patterns

Blood-Heat is a Korean medicine term used to classify patterns where the skin is red with strong heat or accompanied by hemorrhagic changes. It does not refer to blood temperature or abnormalities in blood tests.

Reviewed by Korean Medicine Doctor Choi Yeon-seung · Last updated 2026-08-25
01

What does 'Blood Heat' (Hyeol-yeol) mean?

It is a term used in Korean medicine pattern identification to describe a state where heat characteristics, such as redness, a sensation of heat, and rapid worsening, are prominent in the blood level. 'Blood Heat' is used to categorize patterns where the skin is red, the sensation of heat is strong, or hemorrhagic changes are present. It does not refer to actual blood temperature or abnormalities in blood test results.

02

How is it different from similar conditions?

It is not a diagnostic name such as infectious fever or blood disorders; symptoms requiring prompt medical evaluation are screened first.

03

Why is this important in skin care?

It is used to refine the direction of prescriptions along with other accompanying patterns in conditions such as psoriasis or erythematous skin diseases.

04

What should be checked based on my symptoms?

Prescriptions are not determined by the term 'Blood Heat' alone; the lesions, progression, and general systemic condition are evaluated together.

Related conditions and medical guidance

Check guides where this term is used

Condition GuidancePsoriasisCommon symptoms of psoriasis include thick, raised inflammatory plaques and silvery-white scales on the scalp, elbows, knees, torso, palms, and soles. The skin may feel itchy, burning, stinging, or tight, and may crack dryly and bleed. Depending on the type, it may appear as small droplet-shaped skin changes, smooth rashes in skin folds, pustular skin changes on the hands and feet, or severe redness and scaling across the entire body. This may be accompanied by small pits, thickening, or crumbling of the fingernails and toenails, as well as joint pain, swelling, morning stiffness, and heel pain. If the entire body suddenly turns red, or if pustular skin changes occur with fever and a worsening general condition, seek prompt medical evaluation.Condition GuidanceRosaceaRosacea may begin with recurring redness on the face, centered around the nose, cheeks, forehead, and chin, or with the skin becoming darker than the usual skin tone, such as purple or brown, with the color persisting over time. It may be accompanied by burning, stinging, sensitivity, visible fine blood vessels, and papules, pustules, or edema that look like acne. In some cases, the skin on the nose, forehead, and chin thickens. Dryness, a foreign body sensation, redness, or eyelid swelling in the eyes may appear before skin symptoms; severe eye pain, light sensitivity, or changes in vision require a prompt ophthalmological evaluation.Condition GuidanceGuttate PsoriasisGuttate psoriasis is a type of psoriasis where many small pink or red scaly papules suddenly appear on the torso and limbs, rather than large plaques. It may start after an infection such as a sore throat and can resemble pityriasis rosea, drug eruptions, or tinea. The presence of a large primary plaque, medications taken, ring-shaped active borders, existing psoriasis, and family history are checked together.Medical Evaluation GuideWhat does Korean medicine look for when skin conditions recur after dermatological treatment?Please list separately what has improved and what still remains after dermatological treatment. If redness, oozing, or wheals have decreased or infection is controlled, record which treatment led to the improvement. If dryness, cracking, itching in the same area, or waking up at night remains, specific goals for Korean medicine treatment can be set. If there is new pain, pus, or rapid spreading, do not consider this part of the remaining recovery; seek medical evaluation first and do not change your prescriptions arbitrarily.

Comparison of similar terms

Terms to know for easier distinction

Evidence and Update Information

The definitions and safety standards in the materials below were referenced.

  1. WHO International Standard Terminologies for Traditional MedicineThis refers to the international standard definitions of pattern identification and Korean medicine pathological terms. It is used to determine the direction of herbal medicine prescriptions, distinct from Western medical diagnoses.
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-Heat is a Korean medicine term used to classify patterns where the skin is red with strong heat or accompanied by hemorrhagic changes. It does not refer to blood temperature or abnormalities in blood tests.

What this page covers

What is explained
In the statement, "'Blood Heat' is used to categorize patterns where the skin is red, the sensation of heat is strong, or hemorrhagic changes are present. It does not refer to actual blood temperature or abnormalities in blood test results," what should be checked first?
What situations are covered
'Blood Heat' is used to categorize patterns where the skin is red, the sensation of heat is strong, or hemorrhagic changes are present.
What distinctions are made
Difference from similar terms: It is not a diagnostic name such as infectious fever or blood disorders; symptoms requiring prompt medical evaluation are screened first.
How should this be understood
It does not refer to actual blood temperature or abnormalities in blood test results.

Key Points

  • Meaning of Blood Heat: It is a term used in Korean medicine pattern identification to describe a state where heat characteristics, such as redness, a sensation of heat, and rapid worsening, are prominent in the blood level.
  • Difference from similar terms: It is not a diagnostic name such as infectious fever or blood disorders; symptoms requiring prompt medical evaluation are screened first.
  • Reason for checking during evaluation: It is used to refine the direction of prescriptions along with other accompanying patterns in conditions such as psoriasis or erythematous skin diseases.

References cited on this page

Skin Terminology Glossary

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