What are the obvious symptoms of early lung cancer? The four most obvious symptoms of early lung cancer

Lung cancer is a common malignant tumor. It is a primary malignant tumor of the lung. There are many reasons that can cause this disease, most of which are caused by men's bad living habits. If we want to avoid the occurrence of this disease, we must find its symptoms as early as possible. So, what are the obvious symptoms of lung cancer in the early stage?

1. Chest pain: generally intermittent and mild chest pain. It manifests as dull pain or piercing pain, which can last from minutes to hours. If the tumor invades the pleura, the pain will be more severe, continuous and fixed. If chest pain recurs in early lung cancer, the prognosis is poor if the pain recurs later.

2. Fever: Fever of lung cancer is mostly caused by inflammation due to bronchial obstruction and poor drainage caused by cancer. Early treatment with antibiotics can restore body temperature to normal, but it is easy to relapse. For patients with large tumors, necrosis occurs in the inflammatory center, which often causes a higher body temperature due to the absorption of toxins.

3. Hemoptysis: Half of lung cancer patients have this symptom. If a smoking man over 40 years old has blood in his sputum, blood streaks or small blood clots, the possibility of lung cancer is very high. This is also one of the early symptoms of lung cancer.

4. Cough: This is the most common symptom, which can be a mild dry cough or a severe cough, with varying amounts of sputum. However, in patients with chronic long-term coughs, if the nature of the cough changes, or the frequency of coughing changes or night coughing occurs, it is important to be alert to the possibility of lung cancer. A persistent, uncontrollable cough is one of the most painful symptoms of lung cancer.

5. Chest tightness and shortness of breath: In addition to tumors blocking the bronchus and causing atelectasis and lung inflammation, which can cause chest tightness and shortness of breath, it is generally more obvious in the late stage of lung cancer, especially when there is a large amount of pleural effusion.