What symptoms are the prelude to lung cancer

Lung cancer is a relatively common disease, and in recent years, the incidence of lung cancer has been gradually increasing. According to research, lung cancer patients are mainly middle-aged and elderly people, so the mortality rate of lung cancer is also relatively high. Before developing lung cancer, some symptoms will appear. At this time, if the patient observes carefully and receives timely treatment, it can prevent lung cancer.

1. Coughing up blood

80% of lung cancer patients will cough up blood because the lung cancer tumor cells invade the bronchial mucosa.

Since each lung cancer patient has a different body constitution, the degree of coughing up blood is different. Some lung cancer patients will have blood in their sputum. As the disease continues to worsen, once lung cancer tumor cells enter the blood vessels, they will cause vomiting blood, directly endangering the life of the lung cancer patient.

2. Cough

Generally speaking, the most common symptom of lung cancer patients is coughing, and the cough caused by lung cancer is related to the bronchial mucosa.

Due to its large inertia, lung cancer is overly sensitive to external stimuli and may cause coughing.

A common symptom of lung cancer is paroxysmal irritating cough, for which even cough suppressants have no effect.

If lung cancer tumors grow in the relatively small bronchial mucosa, the cough is not very obvious or even has no symptoms. If the patient is a frequent smoker or has bronchitis, the cough will become more severe and occur more frequently.

3. Chest pain

Generally speaking, many lung cancer patients will have symptoms of chest pain, the main manifestation of which is irregular pain in the chest. In most cases, lung cancer will invade the pleura or chest wall and cause pain. If you experience chest pain, it may be related to the nerves surrounding the bronchi.

If you find yourself having chest pain, you can go to the hospital for a check-up first. Many patients feel that there are many reasons for chest pain and it can cause many symptoms, so they don’t care much about it. After all, there are many diseases that are related to chest pain.

4. Blood in sputum

Blood in sputum is a common symptom of lung cancer, but blood in sputum can cause many diseases, so many patients do not care when they find blood in their sputum. The main reason is vasculitis caused by local necrosis of lung cancer tumors. Coughing up blood is a common symptom of lung cancer, and it is staged and persistent. There may be a small amount of blood in the sputum or a small amount of coughed up blood. If a blood vessel is found to be ruptured, large-scale vomiting of blood will occur.