The appearance of white moss on the tongue is mainly caused by spleen and stomach deficiency (spleen and stomach weakness and cold), which can be improved by improving bad dietary habits, medication and physical therapy. 1. Change bad dietary habits: avoid spicy, cold and irritating foods, reduce the intake of meat, eat more vegetables and fruits, and eat on time. 2. Drug treatment: you can use traditional Chinese medicine to strengthen the spleen, dampness and stomach treatment, if it is caused by cold, you can take patchouli pills; usually caused by a weak spleen and stomach, you can take spleen pills; if accompanied by obvious diarrhea, you can consider ginseng and baizhu san treatment. 3. Physical therapy: you can do moxibustion or gua sha to get rid of the dampness in the body, which can also improve the white moss. If there is a thin layer of white moss on the tongue, you can use a toothbrush to lightly brush the white moss when brushing your teeth. If the white moss lasts for a longer period of time, it is recommended to go to the hospital for consultation.