National Standard Code
BWC
GB/T 15657-2021
Category
Surgical diseases and symptoms

Traditional Chinese Medicine Definition

Dan Toxin, a category of surgical disease in traditional Chinese medicine, falls under the scope of " sores and ulcers". According to the classic text "Internal Medicine of Traditional Chinese Medicine", Dan Toxin is caused by an invasion of fire toxin into the skin, leading to obstruction of Qi and blood, and resulting in red, swollen, hot, and painful skin. It is characterized by an abrupt onset, with the local skin appearing bright red in patches, with clear edges and distinct boundaries, accompanied by symptoms such as fever and headache.

In clinical practice of traditional Chinese medicine, the core pathogenesis of Dan Toxin is the invasion of fire toxin and the obstruction of Qi and blood in the skin. Common precipitating factors include external pathogenic factors, irregular diet, and excessive fatigue. During differentiation of symptoms, attention should be paid to the following key points: first, the differentiation of cold and heat, deficiency and excess, with wind-heat toxin syndrome primarily presenting as redness and swelling on the head and face, burning pain, and fever; while damp-heat toxin syndrome is characterized by redness, swelling, blisters, or large blisters in the lower limbs. Second, the correlation between local and systemic symptoms, such as fever and headache. The overall direction of treatment suggests clearing heat and detoxifying, dispersing wind and removing evil, or clearing heat and dampness, detoxifying and reducing swelling. In clinical practice, the treatment of DanToxin emphasizes both internal and external treatment, with internal medication focusing on clearing heat and detoxifying, and external medication focusing on reducing swelling, alleviating pain, and clearing heat and detoxifying. Traditional Chinese medicine believes that through reasonable adjustment, Dan Toxin can be effectively controlled.

Common Syndrome Types and Key Points of Differentiation

Wind-heat-toxin accumulation syndrome

Main Manifestations: Red and swollen face and head, burning pain, fever

Management Approach: Clear heat and detoxify, disperse wind and expel pathogenic factors

Damp-heat-toxin accumulation syndrome

Main Manifestations: Lower limb edema, burning sensation, blisters or bullae

Management Approach: Clear heat and drain dampness, detoxify and reduce swelling

The above syndrome information is based on traditional Chinese medicine textbooks and clinical standards. Specific differentiation should be completed by a practicing traditional Chinese medicine physician in person.

Physician's Clinical Insights

The sudden onset of Dan毒 patients is characterized by toxic heat, and it is crucial to clear heat and cool the blood.

— Wang Zhengxiang Traditional Chinese Medicine Practitioner

Reviewed by: Wang Zhengxiang (Traditional Chinese Medicine Practitioner) | 2026-07-07 | Version 2

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This page is for the popular science of traditional Chinese medicine knowledge and does not constitute medical advice. Specific diagnosis should be completed by a licensed traditional Chinese medicine practitioner in person.

This article has been reviewed by licensed TCM physicians at Hangzhou Kezhentang TCM Clinic. It is for TCM popular science reference only and does not involve specific treatment plan recommendations.

References: Internal Medicine of TCM (13th Five-Year Plan Textbook), Diagnostic and Therapeutic Effectiveness Standards for TCM Diseases and Syndromes (ZY/T001.1-94), Classification and Codes of TCM Diseases and Syndromes (GB/T 15657-2021)

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