The main symptom of esophageal cancer is progressive difficulty in swallowing. The main symptoms of laryngeal cancer are hoarseness and throat discomfort. 1. Esophageal cancer: in early stage, the symptoms are not obvious or mild, which can be accompanied by burning sensation behind the sternum, progressive dysphagia can occur with the progress of the disease, and esophageal cancer can cause insufficient feeding and chronic gastrointestinal bleeding, which can lead to anemia. Advanced esophageal cancer can develop esophagotracheal fistula, causing cough and fever. When the cancerous lesion metastasizes to other systems, symptoms of corresponding systems can appear. 2. Laryngeal cancer: In early stage, the symptoms are not obvious or mild, and there may be throat discomfort or foreign body sensation. In middle and late stages, laryngeal cancer may cause hoarseness, cough, sore throat, hemoptysis, choking and coughing, difficulty in breathing, etc. Symptoms of corresponding parts of the body may appear when the cancer has metastasized to other parts of the body. If the above symptoms occur, it is recommended to go to a professional hospital to have the cause of the disease clarified and have further examination and treatment under the guidance of a doctor.