Children always clearing their throats may be caused by chronic pharyngitis, tonsillitis, tics, and other causes such as sinusitis. 1. Chronic pharyngitis: Chronic pharyngitis may be caused by acute pharyngitis, upper respiratory tract infections, immune dysfunction and other factors. Patients will have a foreign body sensation in the throat, dry throat, sore throat and other manifestations, so the children feel a foreign body in the throat will appear to always clear the throat performance. 2. Tonsillitis: Tonsillitis is mainly caused by bacterial or viral infection, immune factors, acute inflammation of neighboring organs. Patients will manifest as pharyngeal discomfort, sore throat, difficulty in swallowing and so on. If tonsillitis leads to frequent pharyngeal discomfort, patients will have the symptom of clearing their throat all the time. 3. Tourette’s syndrome: the cause of Tourette’s syndrome is not yet clear, and it is considered to be related to genetic, neurophysiological and psychological factors. Patients will have throat clearing, blinking, pouting, shrugging and other manifestations. 4. Other: children always clearing their throats may also be reflux esophagitis, gastroesophageal reflux and other diseases. It is recommended that children always clearing their throats, the need to take the child to the doctor in a timely manner, the doctor will be clear after the cause of the disease to choose the appropriate measures for treatment.