A vertical line in the middle of the tongue is considered to be a weakness of the spleen and stomach, which is more common in Chinese medicine. The cause of the disease is related to the patient’s constitution, cold and poor lifestyle. It is manifested as loss of appetite, nausea and vomiting, vertical lines in the middle of the tongue and lethargy and other discomforts. In addition, we need to observe whether there are symptoms of dry mouth, and if it is obvious, we need to consult a doctor to investigate whether there is dry syndrome.