Thick yellow tongue coating is most often caused by conditions such as damp-heat of the liver and gallbladder, stagnation, and phlegm-heat congestion of the lungs. If the stagnation is caused by innate spleen deficiency and acquired spleen and stomach failure, the patient will have symptoms such as irritability, distension of the epigastrium (stomach and abdomen), belching (burping) and sourness, and white or yellow thick and greasy moss. 1. Liver and gallbladder damp-heat certificate: mostly due to external damp-heat evil, invading the liver and gallbladder or liver meridian; or addicted to fat and sweet, brewing damp-heat; or the spleen and stomach transport malfunction, dampness and turbidity within the birth of the stagnation of heat, damp-heat stagnation liver and gallbladder caused by. Most of the manifestations are yellowing of the body and eyes, distension and pain in the abdomen and ribs, or lumps under the abdomen and ribs, dullness (lack of appetite, reduced food intake), red tongue, yellow and thick moss, and slippery pulse. 2. Phlegm-heat congestion of the lungs: this disease is mostly due to the evil heat that offends the lungs, lung heat blazing, burn the lungs and fluids, refining fluid into phlegm; or persistent phlegm inside the abundance of heat (the evil qi stays for too long will be transformed into heat), phlegm-heat intertwined, congestion of lungs due to. Most of the manifestations are cough, chest tightness, wheezing, or even nasal agitation, phlegm in the throat, fever and thirst, red tongue with yellow fur and thick, slippery pulse, and so on. It is recommended that patients with yellowish coated tongues go to the hospital and be treated by a professional doctor who can identify the symptoms and treat them positively.