“When a “map tongue” occurs, the filiform papillae in the inflamed area atrophy, leaving a round or oval red exfoliative erythema, while the surrounding filiform papillae proliferate to form a yellowish-white It is named for its shape, which resembles the sinuous borders marked on a map. It is also known as “wandering tongue” because its shape and position can change. ”Guttate tongue”, also known as “fissured tongue”, is a common tongue disease, often associated with map tongue, manifested by the appearance of fissures on the back of the tongue, which vary in size, number, shape and depth, and are divided into lobed and cerebral patterns according to the distribution of fissures. The epithelium inside the fissures is intact, with the presence of tongue papillae, and the softness and physiological functions of the tongue are normal. The “map tongue” and “furrowed tongue” can occur at any age, especially in childhood. The exact cause of “map tongue” and “grooved tongue” is not yet known, but may be related to genetic factors, immune factors, psychological factors (such as mood swings, insomnia, fatigue, etc.), endocrine factors, local oral factors (such as caries or irritation during the eruption of milk teeth), nutritional factors (such as poor digestion, vitamin B deficiency, zinc deficiency in children, etc.), and are closely related to certain systemic diseases (such as psoriasis, seborrheic dermatitis, dry syndrome, infectious diseases, etc.). The “map tongue” may heal itself without treatment, but may recur after an interval. The incidence of “guttate tongue” may be age-related, increasing with age, and its severity is positively correlated with age. Because most patients have no significant discomfort, both usually do not require treatment. If patients have local discomfort, they can use mouthwash after meals. When applying mouthwash, patients with “sulcus tongue” can arch the back of the tongue and open the sulcus to “soak” in the mouthwash, which plays a local cleansing and anti-inflammatory role and prevents the accumulation of food residues and bacteria in the sulcus. Children under 6 years old need to be cleaned with a clean cotton swab dipped in a less irritating mouth rinse such as 0.1% Ethacridine Lactate with the assistance of their parents. Patients with “map tongue” and “furrowed tongue” usually need to maintain good oral hygiene; pay attention to balanced nutrition; eat easily digestible food to maintain good digestive function; avoid eating hot, spicy, sour and dry salty nuts and other foods to reduce local irritants. If the patient is accompanied by systemic diseases, active treatment is required. The prognosis of “map tongue” and “furrowed tongue” is good, no malignant change will occur, nor will they be transformed into other diseases, and “furrowed tongue” will not be cracked due to the deepening of the furrow.