What are the symptoms of late-stage esophageal cancer? Because in the early stages of esophageal cancer, the symptoms are often not very obvious, which leads many people to overlook them. By the time they feel very uncomfortable and seek medical advice, the cancer is generally in the middle to late stages. One common symptom in the later stages is progressive difficulty swallowing, which is a main symptom presented by many patients at the time of consultation. However, this symptom generally occurs only when about two-thirds of the esophagus's circumference has been infiltrated by the tumor, making swallowing difficulties a late-stage symptom. Other symptoms of late-stage esophageal cancer include hoarseness if the tumor compresses the recurrent laryngeal nerve, belching if it invades the diaphragmatic nerves, and symptoms like breathing difficulties and coughing if it compresses the airway.