When it comes to the malignant tumor with the highest incidence and the largest number of deaths in China, it is "lung cancer"!
Relevant studies show that there are about 800,000 newly diagnosed lung cancer patients in China every year, and about 700,000 patients die.
The incidence of lung cancer remains high, increasing year by year, and even showing a trend of rejuvenation.
The reason for this is related to the rapid development of China's industry in recent years, the increasingly serious air pollution, and the increase in the number of smokers.
What is even more frightening is that the clinical manifestations of lung cancer are quite complex, and the symptoms of different patients are different in the morning, evening, and severity of symptoms.
Most patients in the carcinoma in situ period, the symptoms are very mild, or even can not have any discomfort.
Moreover, even if there are symptoms, it is similar to ordinary respiratory diseases because it is a respiratory disease.
Because of this, the early diagnosis rate of lung cancer in China is quite low, and only 1/3 of the nearly 800,000 newly diagnosed patients each year are still in the early or local invasion stage, and the rest of the patients have basically reached the metastatic spread stage, or even entered the advanced stage.
Therefore, the clinical prognosis of lung cancer is not ideal, and most patients have died within 1-3 years after diagnosis.
So the question is, what symptoms appear, do you really need to be vigilant about lung cancer?
1. Cough and cough up blood, when the heart and lung tissue becomes cancerous
As far as current clinical studies are concerned, coughing up and coughing up blood are the most typical symptoms of lung cancer.
Usually, the initial cough of lung cancer is mostly manifested as a paroxysmal irritating dry cough, a choking cough like foreign body stimulation, and the control effect of cough drugs is not ideal.
After that, the degree of coughing will become more and more severe, and the frequency will become more and more frequent.
The reason for this is related to factors such as cancerous swelling constantly stimulating the respiratory tract, causing changes in the secretion of the respiratory mucosa, and co-inflammation;
Next, as the cough becomes more severe, patients may also have intermittent or persistent symptoms of small amounts of sputum with blood and hemoptysis.
This is because when the patient coughs, it will produce extremely strong pressure and impact, which is easy to cause rupture and bleeding on the surface of the cancer.
At the same time, some cancerous tissues will gradually necrosis due to blood circulation disorders, and eventually develop into coughing up blood. Once a patient's large blood vessels are damaged, symptoms of macromoptysis that are difficult to control may also occur.
2, cough and chest pain, lung cancer to find the door
Clinically in China, nearly 1/4 of lung cancer patients have abnormal chest pain symptoms while coughing. This chest pain, in addition to being associated with tissue damage caused by long-term coughing, can also be a manifestation of cancer cell aggression.
Especially in patients with peripheral lung cancer, during the development of the disease, cancer cells are very easy to infiltrate into the parietal pleura, chest wall and other areas, and then develop pleural pain, which is initially manifested as irregular vague pain or dull pain, and then manifested as sharp, intermittent pleural pain;
In addition, if the patient has chest pain that is difficult to specify and the pain is not deep, this may also be a manifestation of central lung cancer.
Because central lung cancer mostly affects the patient's mediastinum, blood vessels, and peripheral bronchial nerve tissue, there is pain that is difficult to locate.
If the above two symptoms have suddenly appeared recently, especially the symptoms of long-term cough and blood coughing, it is likely to be a signal of cancer in the lungs.
Even if it is not related to cancer, it may be a manifestation of the arrival of other serious diseases, and patients should be vigilant and seek medical attention in time for relevant examinations so as not to miss the best time for treatment of the disease.