Clearing throat all the time may be caused by dietary factors, environmental factors, inflammatory stimulation, reflux pharyngitis and other factors. 1. Dietary factors: Eating foods that are too sweet, too salty, too spicy, and drinking less water may cause irritation to the throat area, which may lead to frequent throat clearing, which can be improved on its own by eating a light diet and drinking more water. 2. Environmental factors: poor surrounding environment, air pollution is more serious, may cause irritation to the respiratory mucosa, so that the mucous membrane of the local exudate increase, there are more secretions on the throat area caused by irritation, will frequently clear the throat. 3. Inflammatory stimulation: when there is chronic inflammatory stimulation of the throat area, the mucous membrane of the throat will be repeatedly congested and swollen, and will frequently clear the throat, such as chronic pharyngolaryngitis, which may also be accompanied by a foreign body sensation in the throat, pharyngeal itching and other symptoms. 4. Reflux pharyngitis: When there is gastroesophageal reflux, due to the repeated irritation of the throat area caused by stomach acid, you will always clear your throat, which may also be accompanied by heartburn, epigastric pain, hiccups, difficulty in swallowing and other symptoms. If you keep clearing your throat and have other abnormalities, it is recommended that you consult a doctor for a detailed examination and standardized treatment after a clear diagnosis to avoid delaying your condition.