Coughing a foul-smelling thing from inside the throat, clinically there are the following possibilities: the first is a stone of the tonsils, more likely to occur in adults, the patient may often have bad breath, clinical examination, can see the tonsils on the tonsils crypt scattered in multiple tonsil stones. Clinically for this condition patients are generally advised to gargle more, have pharyngitis, and actively treat laryngitis disease. If tonsil stones are not eliminated for a long time, surgery can also be done to remove the tonsils. The second is that this foul-smelling stuff may be caused by tracheal or lung diseases, such as patients with bronchopneumonia, lung abscess, tuberculosis, lung cancer and other diseases, resulting in pus plugs or secretions in the lungs being coughed out from the trachea, thus manifesting themselves in this situation. In conclusion, for the above cases, patients are advised to go to the ENT department for routine examination of the pharynx. If there is no problem with the throat, the patient is advised to go to the gastroenterology department for a routine examination of the lungs, if necessary.