Frequent throat clearing may be due to foreign body sensation in the throat, such as reflux pharyngitis, rhinitis and sinusitis; it may also be psychological factors, such as Tourette’s syndrome. 1. Reflux pharyngitis: the stomach contents reflux to the throat, stimulate the mucous membrane of the throat, throat foreign body sensation, there will be frequent clearing of the throat. 2. Rhinitis and sinusitis: After suffering from rhinitis and sinusitis, the mucous membrane of the nasal cavity becomes congested and edematous, and the secretion of mucous glands increases, leading to an increase in nasal discharge, and excessive nasal discharge flows backward into the nasopharynx, stimulating the pharynx to appear frequent throat clearing. 3. Tourette’s Syndrome: If a child frequently clears his or her throat, accompanied by multiple, non-rhythmic, rapid motor twitching of other limbs, he or she may be suffering from Pediatric Tourette’s Syndrome (TTS). If there are other reasons for frequent throat clearing, it is recommended to go to the hospital in time to identify the cause of the disease and give targeted treatment.