Early symptoms of cardia cancer are as follows: 1. Distension or slight pain behind the sternum. This symptom does not occur continuously, but is intermittent or aggravated after exertion and when eating quickly. 2.Foreign body sensation when swallowing food. During swallowing, food (especially dry and hard food) passing through the lesion area (the lesion is very small) may produce a foreign body sensation, and often fixed in one part, some patients describe the feeling like there is never finish swallowing something. Because the symptoms are mild and occur intermittently, it is easy for the patient to ignore. 3, swallowing stagnation or frustration, that is, the patient swallowing food seems to have a momentary stagnation in a certain part of the frustration of the feeling, this situation is not persistent, only in the development of the lesion is gradually obvious. 4, chest swelling or tightness, and often accompanied by dryness of the throat. Patients complain that there is always a stuffy phenomenon in the front part of the chest, which seems to be blocked by an object and makes the chest feel tight, which is especially obvious when swallowing food, but it does not affect normal life and work. 5. Fullness and light pain in the fossa, subxiphoid region or upper abdomen, which is more obvious when eating dry food, but it does not occur every time and is intermittent. This is often an early symptom of cardia cancer. The above early symptoms of cardia cancer usually last for more than 3 months. When it occurs frequently and persistently, it is already a symptom of middle to late stage of pancreatic cancer, and it is much more difficult to be treated at that time.