The following are the main clinical causes of throat discomfort. 1. psychological factors, some patients may have heard that smoking is harmful to health, smoking may induce laryngeal cancer, lung cancer and other diseases, once patients quit smoking, patients may think more in their hearts, psychological pressure, but also easy to appear pharyngeal foreign body syndrome and other performance. 2. after patients stop smoking, the patient’s bronchial mucosa cilia swing function will gradually The patient’s nerve reflexes will be more sensitive after the patient stops smoking, and the patient’s long-term smoking-induced pharyngitis will be more prominent after the nerve reflexes are sensitive. All in all, it is normal for patients to have throat discomfort after quitting smoking. It is recommended to do electronic laryngoscopy, lung CT and other tests to exclude related diseases, and then encourage patients to insist on continuing to quit smoking.