First, abnormal chest pain: most of people's key internal organs are located in the chest and abdomen. For example, the lungs are distributed on both sides of the sternum. According to the information of clinical medicine, lung cancer is the tumor with the largest incidence and the largest number of deaths in China. Its early typicality is mainly dry cough, hemoptysis or hemoptysis. In addition, "chest pain" is also a typical symptom of lung cancer. Chest pain caused by lung cancer mainly manifests as dull pain, dull pain or tingling in the breast in the early stage, then develops into sharp and intermittent pain, and finally evolves into stable heartache. Even if patients take corresponding painkillers, the pain cannot be relieved.

Second, abdominal pain: One of the most preventable diseases of cancer is "pain". For example, lung cancer and chest pain mentioned in the original text are one of them. In addition, the canceration of human organs in the abdomen will be harmed by cancer invading the outer membrane, infiltrating the peripheral organs, squeezing mechanism and central nervous system, leading to the involvement of peripheral organs, and patients may also have abdominal pain. This kind of pain is mainly manifested as dull pain, dull pain or traction pain in the early stage, and then the degree of pain gradually increases and the pain lasts longer and longer. At the same time, pain can be radiated to other parts, such as pancreatic tumor can cause low back pain and early liver cancer complicated with left arm pain.

Third, ascites: ascites is actually what we often say every day, which means that a large amount of exudate has penetrated into the abdomen. In medicine, there are many diseases that can cause ascites, such as renal failure, cirrhosis and end-stage ascites. In addition, after the cancer of human organs enters the middle and late stage, it will be harmed by tumor cells invading peritoneum, hypoproteinemia, portal hypertension and so on, and patients may also have ascites. As far as patients with early liver cancer are concerned, almost all patients with early liver cancer who have advanced to the end stage will have ascites to varying degrees.

Generally speaking, the symptoms caused by canceration in different body parts will be different. Even if the same human organ often becomes cancerous, the patient's age, pain tolerance, pathological type and stage of cancer are different, and the symptoms are different.