What causes a thick, white and greasy tongue coating?

Generally, a thick, white, and greasy tongue coating may be caused by dietary factors, poor oral hygiene, spleen and stomach deficiency-cold, upper respiratory tract infections, glossitis, or other reasons. If the above conditions occur, it is recommended to seek medical treatment promptly. Specific analyses are as follows:

1. Dietary Factors

Consumption of milk, yogurt, milk tea, and similar beverages may leave residues on the tongue coating, causing it to appear white and sticky. This is a normal physiological phenomenon. Adjusting the diet in daily life can improve this condition.

2. Poor Oral Hygiene

Failing to maintain good oral hygiene, such as not brushing teeth regularly, may allow bacteria to proliferate in the mouth, leading to a thicker, whiter, and greasy-looking tongue coating. It is important to strengthen oral hygiene practices and brush teeth regularly.

3. Spleen and Stomach Deficiency-Cold

Spleen and stomach deficiency-cold is primarily caused by improper diet or excessive fatigue. This condition may disrupt the body's fluid metabolism, resulting in excessive dampness and thus causing the aforementioned symptoms. It may be accompanied by symptoms such as fever and sneezing. Treatment should follow medical advice using medications such as Fuzi Lizhong Pills, Shenling Baizhu Powder, or Xiangsha Yangwei Pills.

4. Upper Respiratory Tract Infection

Upper respiratory tract infections are usually caused by viral infections. Due to physical weakness and insufficient qi and blood during illness, the tongue may appear pale with a thick white coating. Symptoms may include runny nose, cough, and fever. Treatment should be guided by a physician using medications such as Banlangen Granules, Ganmaoling Granules, or Antiviral Oral Liquid.

5. Glossitis

Vitamin deficiencies, poor oral hygiene, allergies, and other factors may trigger glossitis. Glossitis can cause symptoms such as numbness and pain in the tongue. Some patients with milder symptoms may develop a thick, white tongue coating. Other symptoms may include numbness and reduced taste sensation. Patients should follow medical advice and use medications such as Vitamin B2 tablets, folic acid tablets, or compound chlorhexidine dexamethasone films.

In daily life, one should maintain a balanced diet, practice good oral hygiene, avoid excessive fatigue and emotional stress, and strengthen overall health to prevent oral issues such as a thick, white, greasy tongue coating.