Throat old phlegm and cough up white particles, may be related to tonsil stones, chronic tonsillitis, should be promptly consulted to identify the cause. 1. Tonsil stones: Tonsil stones are food debris and bacterial metabolites that form a deposit with a particular odor. Clinically, patients may feel phlegm in the throat, repeatedly clearing the throat, coughing up white particles, and the doctor removes the stones with a suction device, or cleans out the stones by gargling with mouthwash or saline. Surgery to remove the tonsils if necessary. 2. Chronic tonsillitis: persistent infectious inflammation of the tonsils, white particles consider food debris and tonsil crypt secretions, also accompanied by pharyngeal pain, foreign body sensation, irritating cough. Generally need compound borax solution gargle, iodine tablets containing chemical treatment; such as chronic tonsillitis repeated acute attacks, feasible surgical treatment, tonsil removal surgery. The throat always have phlegm and cough out white particles, it is recommended that the hospital consultation, diagnosis is clear and follow the doctor’s instructions for medication and treatment.