Spicy tongue is considered to be caused by food irritation, papillitis of the tongue, burning mouth syndrome and other factors. 1. Food stimulation: when people eat spicy food or too hot food, the tongue can be stimulated by food, resulting in a spicy tongue. 2. Tongue papillitis: caused by endocrine disorders, vitamin deficiencies, anemia and other factors, patients with tongue papillitis usually have red, swollen and burning pain in the tongue papillae, accompanied by dry mouth, numbness and other discomforts, and the patients may consciously feel a spicy sensation on the surface of the tongue. 3. Burning mouth syndrome: caused by neurological lesions, drug stimulation, nutritional deficiency and other factors, patients with burning mouth syndrome usually have burning pain in the tongue, accompanied by taste changes, texture and other symptoms. In addition, oral ulcers and other diseases can also cause spicy tongue, it is recommended that patients go to the hospital in a timely manner to identify the cause of the disease, symptomatic treatment.