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Three paths — choose the one that suits you
The world of Chinese medicine is ancient and self-contained. Bencao Dian offers three entry paths — whether you are a complete beginner, have some background, or want to dive directly into clinical reasoning.
Bencao Dian is a bilingual knowledge graph of Chinese medicine — herbs, formulas, patterns, meridians, acupoints, and classical texts, each with its place and each connected to the others. The platform aims not only to present the data but also to explain the traditional theory that holds it together.
Chinese medicine is a self-contained medical tradition more than two thousand years old. It has its own view of the body (the zang-fu organs, meridians, qi, blood, and fluids), its own etiology (the six external pathogens, the seven emotions, diet and overwork), its own diagnostic methods (looking, listening, asking, touching), and its own therapeutics (herbs, formulas, acupuncture, manual therapy). It is not an "alternative" to biomedicine but a complete and independent paradigm.
Read the nine foundational concepts below in order — it should take an hour or two. By the end you will understand what the "nature, flavor, and channel tropism" line at the top of every herb page actually means, and you will be able to read the composition diagram of any formula in the database.
The foundational categorical pair of Chinese medicine. Every phenomenon can be analyzed as a relationship of yin and yang — mutually rooted, dynamically waxing and waning, and capable of transforming into one another.
The five fundamental phases — wood, fire, earth, metal, and water — and the relationships of generation and control among them, used to map correspondences between the organs, seasons, emotions, colors, and tastes.
The three classes of vital substance that constitute and maintain the human body. Qi propels and warms; blood nourishes and gives form; jin-ye are the lighter and heavier fluids that moisten the tissues.
The Chinese medical organ system. The five zang (Heart, Liver, Spleen, Lung, Kidney) store the essential substances and do not discharge them; the six fu (Gallbladder, Stomach, Small Intestine, Large Intestine, Bladder, Triple Burner) transmit and transform but do not store.
The most fundamental diagnostic framework in Chinese medicine — four polarities (yin/yang, exterior/interior, cold/heat, vacuity/excess) that organize every clinical presentation. Every other system of pattern differentiation rests on it.
Wind, cold, summer-heat, dampness, dryness, and fire — the six external pathogenic factors of Chinese medicine, the standard framework for understanding how environmental influences cause disease.
The two core axes describing the property of any Chinese herb. The four natures classify thermal effect (cold, cool, warm, hot, plus neutral); the five flavors classify functional taste (acrid, sweet, sour, bitter, salty, plus bland and astringent).
The doctrine that each herb "enters" specific meridians and organs preferentially, allowing therapy to be targeted to particular regions of the body.
The fundamental hierarchy of formula composition in Chinese medicine. Each herb in a formula occupies one of four roles, contributing a distinct function so that the whole is more than the sum of its parts.
If you already know the basics of yin-yang, the five phases, and the zang-fu organs, start with the About page to see how Bencao Dian structures the tradition as entities and relationships. Then pick any herb, formula, or pattern that interests you and follow the "related" links from page to page — the platform is designed to be read laterally as much as linearly.
Go straight to search, or browse by herb, formula, pattern, or acupoint. Use the differentiation and formula-comparison tools for cross-reference work. All sources are documented on the About page.
This platform is for educational and scholarly reference. Not medical advice.