Why is cancer always late when it is discovered? Which signals are easily overlooked by us?

Cancer is a terrible disease, and in recent years, although people's quality of life has improved, people's physical health has been declining, and the probability of suffering from cancer is increasing, especially gastric cancer.

The occurrence of gastric cancer is mostly due to some stress at work and bad eating habits, which will aggravate the damage to the stomach. In fact, before gastric cancer came, it was not silent. These four signals were given in advance, but unfortunately most people missed them.

When there is a tumor in the stomach, it will easily hinder the entry of food, so it may be difficult and uncomfortable to swallow food. So if you have difficulty swallowing while eating, you'd better go to the hospital for examination. There may be a tumor in your stomach.

In life, due to heavy work pressure, people may easily lose their appetite. In fact, this is also a relatively normal reaction. However, if you often have acid reflux or even indigestion, and you want to vomit when you see some food, it is probably an early signal of gastric cancer. It is best to go to the hospital for a check-up to avoid more serious changes.

The proportion of starchy foods in the diet is high, and some carcinogens (benzopyrene, etc. ) are easily produced by frying, frying, boiling and frying, and the habit of eating pickled food (sodium nitrite exceeds the standard) will increase the incidence of digestive tract cancer to varying degrees.

The main cause of liver cancer is chronic hepatitis. China and other East Asian countries are the high incidence areas of hepatitis B and hepatitis C, which is mainly due to the characteristics of cancer cells. Objectively speaking, cancer cells themselves are "harmless" and the body has little reaction to their appearance.

The main cause of liver cancer is chronic hepatitis, and China and other East Asian countries are high-risk areas of hepatitis B and hepatitis C. Why is cancer found in the middle and late stages? This is mainly due to the characteristics of cancer cells. Objectively speaking, cancer cells themselves are "harmless" and the body has little reaction to their appearance.

However, with the rapid increase of the number of cancer cells, there will be many negative effects, such as excessive digestion of nutrients (cachexia), destruction of normal tissues and organ structures, and eventually lead to functional failure and death. In the early stage of tumorigenesis, cancer cells proliferate slowly. Although the immune system will be activated to destroy some cancer cells, the intensity and specificity of this process are not enough for the body to perceive and distinguish.

When there is cancer in the stomach and the tumor has already appeared, it is easy to make the abdomen swell, and even eating a little food will have an abnormal sense of protection. And if you often have stomach pain or sternal pain, it may have a lot to do with gastric cancer. Go to the hospital for examination in time to avoid the deterioration of the condition.

Abdominal pain is a very obvious symptom, but many people will ignore this feeling. If pain often occurs in daily life and cannot be relieved by taking medicine, it is necessary to pay attention to it and go to the hospital for examination in time to avoid aggravation.

Cancer early screening refers to the early detection of cancer before symptoms appear (seeking medical treatment with symptoms belongs to the clinical diagnosis stage), aiming at improving the probability of early detection of cancer. Not all cancers can be screened early. At present, breast cancer, cervical cancer and colorectal cancer are relatively mature, and lung cancer is gradually maturing.

Objectively speaking, early screening of cancer can not completely kill cancer in the cradle. On the one hand, not all cancers can be screened at an early stage, and on the other hand, early screening cannot be completely found at an early stage. Therefore, early screening should be carefully selected, combined with personal conditions and professional advice.