Small bubbles in the throat may be caused by pharyngitis, herpes pharyngitis, hand, foot and mouth disease and other diseases. It is recommended to go to the ENT department of the hospital in time to improve the examination and treatment under the guidance of the doctor. 1. Pharyngitis: dust irritation, frequent smoking and alcoholism may trigger pharyngitis. When the mucous membrane in the throat area is frequently stimulated by inflammation, mucous membrane congestion and lymphatic tissue hyperplasia may occur, manifesting as small bubbles in the throat. Often accompanied by pharyngeal foreign body sensation, dry throat, sore throat and other discomforts. 2. Herpes pharyngitis: mainly seen in acute inflammation caused by viral infections, patients may have symptoms of small bubbles in the throat. Patients will have small bubbles in the throat, and may also be accompanied by fever, sore throat and other symptoms. 3. Hand, foot and mouth disease: Coxsackie virus A16, enterovirus 71 and other pathogen infections are common causes of hand, foot and mouth disease. In addition to small bubbles in the throat, patients also manifest herpes on the hands, feet, mouth and other parts of the body, often accompanied by anorexia, low fever and other symptoms. It is recommended to keep the inside of the mouth clean on a daily basis. If you have small bubbles in your throat, you should go to the hospital in time to clarify the cause of the disease and receive treatment as soon as possible.