Feeling a foreign body at the root of the tongue may be caused by physiological reasons, oral ulcers at the root of the tongue, lingual tonsillitis and other factors. It is recommended to go to the hospital in time for relevant examinations, symptomatic use of watermelon cream, amoxicillin and other drugs. 1. Physiological reasons: generally due to the patient’s intake of sticky, thin food sticking to the root of the tongue caused by the patient to feel the root of the tongue has a foreign body. It is recommended to remove the foreign body by drinking more water, brushing teeth, gargling and toothpicking. 2. Oral ulcers at the root of the tongue: some patients will have a few oral ulcers at the root of the tongue at the end, then they will feel that there is a foreign body at the root of the tongue. It is recommended to use watermelon cream, ice boron powder, oral ulcer powder and other drugs under the guidance of the doctor. 3. Tongue tonsillitis: it is generally an inflammatory lesion of the lymphatic tissue at the root of the tongue, so the patient will have the symptom of feeling a foreign body at the root of the tongue. It is recommended to take oral amoxicillin, cefixime and other drugs under the guidance of the doctor. It is also recommended that the patient’s diet should be light, avoid spicy, cold and other stimulating foods.