Stomach heat should refer to the Chinese medicine stomach fire bias, stomach fire bias, thick tongue may be and diet, heat, long illness injury Yin and other reasons, it is recommended to consult a doctor in a timely manner to clarify. 1. Dietary indiscretion: stomach fire refers to the gastric hyperfunction and the appearance of heat, if the patient long-term eating spicy stimulation, greasy cold or salty food, as well as long-term smoking and drinking can be caused by stomach fire tongue thick phenomenon. 2. External heat: generally refers to the human body to feel the external evil caused by internal organs and yin and yang imbalance, the emergence of fever as the main symptom. When the heat is offending the stomach, there may be stomach fire, resulting in a thick tongue. 3. Injury to the Yin: such as when the external heat disease for a long time may deplete the Yin fluid in the stomach, thus appearing in the stomach fire, tongue thick performance, may also be accompanied by hot flashes (a burst of fever), night sweats (sleep sweating abnormal, wake up sweating to stop), dry mouth and thirst, waist and knee soreness and softness (waist and knee soreness and weakness of the sensation), the heart of the hands and feet hot and other symptoms. The presence of the above factors should lead to prompt medical attention to clarify the diagnosis and, if necessary, appropriate treatment.