Coughing up a rice-like very smelly foreign body may be dislodged tonsil stones, can also be caused by chronic pharyngitis and tonsil keratosis. 1. If there is chronic inflammation of the tonsils, enlarged patients, easy to form chronic inflammation secretion in the tonsil crypts, or the previous acute infection of the tonsils, crypts can be condensed by leukocytes and bacteria into a pus embolus secretion, which may be discharged by clearing the throat and coughing, swallowing and squeezing and other actions. 2. Patients with chronic pharyngitis often cough up no secretions, or only granular root powder-like secretions. When mixed with anaerobic infection, the secretion will have a foul odor. 3. The keratinized material of tonsil keratosis is hard and firmly attached, and small particles can be smelled even if they are pulled down with force. It is recommended to go to the otorhinolaryngology department of the hospital for a systematic examination in order to clarify the cause of the disease, which can be dealt with by appropriate measures.