The odor coming out of the throat may be related to reflux laryngitis, pharyngo-esophageal diverticulum, chronic tonsillitis and other causes. 1. Reflux pharyngolaryngitis: after food enters the gastrointestinal tract through the mouth and esophagus, it will not normally return in the same way under the regulation of the upper gastrointestinal barrier; however, if the barrier function decreases, the stomach contents will flow back into the pharynx, causing damage and forming reflux pharyngolaryngitis, which will result in the emergence of a bad smell coming out of the throat. 2. Pharyngo-esophageal diverticulum: the early contraction of the pharyngeal constrictor muscle, the dysfunction of the cricopharyngeal muscle movement and other reasons for the emergence of cystic bulge, the food left in the esophageal diverticulum reflux, can cause the odor to gush out. 3. Chronic tonsillitis: Because of the persistent, infectious inflammatory reaction of the tonsil crypts, the phenomenon of odor coming out of the throat can occur. If you have a bad smell coming out of your throat, it is recommended that you go to the hospital in time to clarify the cause of the disease and carry out standardized treatment under the guidance of the doctor.