Category: KTM Theory & Basics

Beyond the familiar interior-exterior pairing of the organs, Korean medicine keeps a second map — jangbu byeoltong, or organ-to-organ communication. Its clearest lesson: why the heart steadies the gallbladder, and why a timid patient is treated at the gallbladder.

The Sanjiao, or Triple Burner, is the strangest organ in Korean medicine: the one Fu with no tissue of its own. It is pure function — the highway along which Qi and fluids travel and the connective space that lets the other organs do their work, divided into an upper burner like mist, a middle like a fermenting brew, and a lower like a drainage ditch.

Western surgery treats the gallbladder as the organ you can live without. The gallbladder in Korean medicine is something larger: an extraordinary Fu that stores a refined essence, the “official of rectitude” that governs decision and courage, and — in a claim modern pathology unexpectedly echoes — a quiet partner to the bones.

The kidney is the body’s deepest reserve in Korean medicine. Its master function is to store essence (Jing), from which kidney Qi, Yin, and Yang all arise. This guide covers essence and its two sources, why kidney Yin/Yang/Qi deficiencies all trace to essence, the kidney’s rule over growth and reproduction, and its grasping of Qi and governance of water.

The liver in Korean medicine has two great functions: it stores the blood and it courses the Qi. This guide explains both — the liver as the body’s blood bank and metabolic manager, and its coursing role that keeps Qi, emotions, bile, digestion, and blood flow all moving — and why the two must balance each other.

After the spleen and stomach, the rest of the digestive tract: the small intestine, which receives food, transforms it further, and separates the clear from the turbid; and the large intestine, which conducts the residue, absorbs leftover fluid, and forms stool. This guide also explains the close liver–large intestine connection.

The spleen and stomach are the digestive core of Korean medicine — and, because they make Qi and Blood from food, its most fundamental organs. This guide explains the raising-and-lowering pair, the stomach’s work of receiving and ripening, and the spleen’s three jobs: transforming and transporting, raising the clear, and governing the blood.

After the heart comes the lung. In Korean medicine the lung works in two directions — dispersing Qi outward and descending it down — and governs Qi for the whole body: respiration, Qi generation, the water passages, and the gathering of blood. This guide also explains why the lung sits at the surface and comes in twos.

The heart is where Korean medicine’s organ theory begins. It has two governing roles — it rules the blood and vessels, and it rules the mind. This guide explains both, the old distinction between the “blood heart” and the “spirit heart,” and the protective role of the pericardium.

After Qi, Blood, and Body Fluids come the organs. Korean medicine sorts the internal organs into three classes by function — the storing Zang, the passing-through Fu, and a third, unusual group called the extraordinary organs (brain, marrow, bone, vessels, gallbladder, and uterus). This guide lays out the classification and what makes the extraordinary organs distinct.