The tongue coating primarily indicates the function of which organ?

The tongue coating is primarily associated with the Stomach in Traditional Chinese Medicine (TCM). It reflects the state of the body’s digestive system, primarily indicating how well the Stomach is functioning in terms of digesting food and transforming it into Qi and Blood. A healthy tongue coating typically suggests proper digestive health, while abnormalities in the thickness, color, or quality of the coating may indicate issues related to the Stomach such as dampness, heat, or even deficiency.

In TCM, the Stomach's role is pivotal as it is responsible for receiving food and fluids and starting the digestive process. Therefore, the tongue coating can provide valuable insights into the Stomach's condition, revealing whether there is an excess or deficiency present. Understanding this connection helps practitioners assess various symptoms and formulate appropriate treatment plans.

Other organs have different indicators linked to their functions. While the Small Intestine, Gall Bladder, and Large Intestine can influence overall health, they are not primarily indicated by the tongue coating in the same way that the Stomach is. The direct association of the tongue coating with the Stomach reinforces its significance in diagnostic practices in TCM.