Stomach heat is categorized into solid heat and deficiency heat. Stomach solid heat is characterized by a red tongue with little moss, while stomach deficiency heat is characterized by a red tongue with little fluid. Stomach solid heat of the tongue is red tongue with little moss, because stomach heat will be in the stomach to accept the smell of putrefactive (carrying and digesting food) food steamed on the tongue, the appearance of red tongue with little moss; stomach yin deficiency, yin deficiency born of internal heat, the tongue can be seen on the tongue red tongue, due to the loss of yin moistened tongue, blood deficiency, then the tongue is red tongue with less fluids. Nausea and vomiting of yellow water can be seen when stomach fire is inflamed. Insufficient stomach yin (insufficient yin fluid in the stomach), yang qi is hyperactive, there will be a situation of internalized deficiency heat, deficiency heat is not dispersed over a long period of time, and the stomach will be stagnant, resulting in pain in the stomach and epigastric region, which is a vague pain, not a particularly severe pain. It is recommended that patients with gastric heat be regulated under the guidance of traditional Chinese medicine, and individuals should not take medication blindly to avoid adverse consequences.