Generally, there is no accurate method to self-test esophageal cancer and pharyngitis, but the initial judgment can be made based on the difference of clinical manifestations when there is discomfort, but the self-test results are usually not accurate. There are similarities between the two, such as symptoms of swallowing obstruction when drinking or eating, and pharyngeal discomfort in daily life, etc. Sometimes it is difficult to distinguish them, so it is recommended to go to hospital for relevant examination as soon as possible to identify the two diseases and carry out standardized treatment. 1.Esophageal cancer: Patients show progressively worsening swallowing disorder, and at first they only have choking sensation when eating hard food. As the disease progresses, there is obvious foreign body sensation when eating any food or even drinking water, and swallowing is more difficult. Early symptoms are not typical, some patients can have retrosternal discomfort, burning sensation or pulling pain; 2, pharyngitis: pharyngitis patients in the empty throat, that is, no food in the case of foreign body sensation, sometimes light and sometimes heavy, patients often feel foreign body sensation in the pharynx in the morning, brush teeth easily cause dry vomiting, can have white mucous sputum. Some patients also have respiratory symptoms such as dry throat, itchy throat, sore throat and cough, but the condition does not worsen with eating. If patients show symptoms such as pharyngeal discomfort or swallowing disorder, they should go to the hospital in time. They can be distinguished by blood routine, sputum culture, laryngoscopy or esophagoscopy, etc., so as to clarify the cause and treat the disease as early as possible, especially the early diagnosis and treatment of esophageal cancer is crucial to the prognosis of the disease.