The following are the clinical possibilities for coughing up white particles in the throat. 1. tonsil stones, tonsil stones are a secretion with a special odor consisting of food residues and bacterial metabolites that occur inside the tonsil crypt. If the patient repeatedly clears his throat and coughs this up, it is recommended that the patient rinses his mouth more often, and the larger ones can be removed by a doctor with an attractor and tweezers, which can easily lead to oral infection or halitosis and other diseases in the mouth for a long time. 2, the patient coughs up white particles from the lungs and trachea, and some patients, such as those with mycoplasma pneumonia, intrapulmonary infections, bronchial dilatation When the patient coughs, these secretions may come out of the trachea. In this case, it is recommended that the patient go to the respiratory medicine department to do lung auscultation, lung CT and other related examinations to determine the nature of the lung disease.