The yellow color of baby’s tongue is mostly caused by heat in the body. According to Chinese medicine, yellow moss is one of the pathological moss colors. It is the main evidence of internal and heat. If the moss is more yellow, it means that the heat is more intense. In Western medicine pathology, yellow moss is mostly related to inflammation and infection, many bacterial infectious diseases are prone to yellow moss. If the tongue moss is yellowish and thin, it means that the heat is lighter, and it is commonly seen in external wind-heat symptoms or wind-cold heat, that is, cold. The baby often has fever, sweating, heavy wind, light cold, stuffy nose and yellow snot, sore throat and other symptoms. 2, if the baby’s tongue is yellow, thick and dry, it indicates that the heat is heavy, most of the stomach heat injury. It is often accompanied by fever, no sweating, constipation and other manifestations. 3.If the moss is yellow and thick and greasy, it is damp-heat or phlegm-damp food stagnation in the spleen and stomach. This condition often presents with indigestion, food stagnation, abdominal distension, bad breath, etc. 4.And tender yellow moss is mostly deficiency heat. Most of them have hot flashes, night sweats, thinning of the body and irritability of the five hearts. 5, burnt yellow moss is heat knot, the onset of longer, the condition is more serious, it is recommended to go to the hospital to further identify the cause, the symptomatic treatment. 6.If old yellow and dry and cracked, it is heat extreme, also is a more dangerous kind of pathological tongue moss, need to seek medical attention in time. In addition to this, yellow moss can also be seen after eating medicine or stainable food, candy, etc. This is only a temporary phenomenon, no need to worry. If the baby has a light yellow moss and there is no abnormality in the spirit, diet or stool, parents can let the baby drink more warm water and observe the diet in moderation, and very often it will return to normal in 1-2 days.