People say that cancer generally refers to all malignant tumors. The reason is that normal cells are mutated into cancer cells by physical, chemical, viral and other carcinogenic factors
Cancer cells are transformed from normal cells and are the source of cancer. Different from normal cells, cancer cells have three characteristics: unlimited proliferation, transformation and easy metastasis
It can proliferate indefinitely, destroy normal cells and tissues, locally invade surrounding normal tissues, and even transfer to other parts of the body through the circulatory system or lymphatic system
Cancer, cardiovascular disease, accidents and accidents together constitute the three major causes of death in the world today. It is one of the major diseases that seriously affect human health and threaten human life. It grows rapidly, can invade surrounding tissues, and can spread to the surrounding areas. It is extremely destructive. In addition to the symptoms of obstruction and oppression, it may also affect the normal function of genetic organs, leading to human death
Good body, why can you get cancer? A group of cartoons reveal the whole process of cancer
What are the early symptoms of gastric cancer
There are no obvious symptoms in the early stage of gastric cancer. The common manifestations are as follows:
1. Epigastric discomfort: you will feel full after eating a small amount of food
2. Stomachache: usually accompanied by inflammation in the stomach, the canceration of ulcer will cause pain
3. General symptoms: including anemia, fatigue, lack of appetite, etc
4. Weight loss: even losing more than ten kilograms may occur
The symptoms of early gastric cancer are atypical and difficult to find through symptoms. If there are the above symptoms, it is recommended that the patient go to the hospital and find a doctor for preliminary hematological examination. Gastroscopy may be required. Gastroscopy can find early gastric cancer and precancerous lesions, such as chronic atrophic gastritis and gastric ulcer
There is no good treatment in the early stage, and canceration is easy to occur in the late stage. Therefore, early detection by gastroscope and control in the severe stage can prevent the occurrence of gastric cancer
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