A particularly white tongue may be related to physiological factors, or it may be caused by iron deficiency anemia, oral lichen planus, Candida albicans infection and other reasons. 1. Physiological factors: for example, poor oral hygiene, long time without brushing teeth, rinsing mouth, may lead to particularly white tongue. It may also be caused by frequent consumption of spicy and stimulating food in large quantities, which leads to irritation of the tongue mucosa, thus causing the tongue to be particularly white. 2. Iron deficiency anemia: The presence of iron deficiency anemia, resulting in a decrease in the number of red blood cells in the blood and a decrease in blood volume may lead to a particularly white tongue, which may also be accompanied by a pale face, weakness and other manifestations. 3. Oral lichen planus: this disease is a chronic inflammatory skin and mucous membrane disease, which can lead to the patient’s tongue is particularly white, sometimes there may be local mucosal epithelium atrophy red, congestive erythema, may also be accompanied by pain, tongue roughness and other performance. 4. Candida albicans infection: when autoimmune deficiency or oral flora disorders, a large number of Candida albicans infections, such as hairy tongue, will lead to particularly white tongue. The white tongue may also be caused by other reasons, and it is recommended to consult a doctor as soon as possible to diagnose the cause and give targeted treatment.