It mainly appears on the back of the tongue, and sometimes it can also appear on the edge of the tongue, the ventral part of the tongue and the tip of the tongue. The filamentous papillae and fungoid papillae of the tongue are peeled off in sheets, forming a round and oval smooth red peeling area, and fungoid papillae can sometimes be clearly seen. When one or more papillae occur, they can quickly merge into sheets, and the boundary is slightly raised, which is like the boundary of a map. Its shape and position are changeable, and the peeling area gradually expands in the centrifugal direction, and its white edge also follows.
The cause of map tongue is unknown, and it is related to indigestion, intestinal parasites and vitamin B deficiency in children. In adults, it is related to menstrual cycle, anemia, gastrointestinal dysfunction, mental and emotional instability, overwork and focal infection; It may also be related to heredity.
Treatment: 1, for odontogenic and non-odontogenic infections.
2. Maintain oral hygiene.
3. Use antibiotics as appropriate when complicated with infection.