What are the early symptoms of lung cancer? If you have these four symptoms, you need to pay attention to them

The main early symptoms of lung cancer are: cough, low fever, chest pain, and blood in sputum; a small number of lung cancer patients have no obvious symptoms in the early stages of the disease.

1. Cough <br/>Lung cancer cells attach to the bronchial lung tissue, repeatedly irritating the respiratory tract, causing the respiratory tract to respond with rejection and resulting in an irritating cough.
2. Low-grade fever <br/>When the tumor is large and blocks the lung lobe, the patient is prone to fever. Patients with good physical condition and mild symptoms mainly have low-grade fever; patients with poor physical condition or severe course of disease mainly have high-grade fever. Antipyretics can temporarily restore body temperature to normal, but it is easy to relapse.
3. Chest pain <br/>Chest pain may accompany the entire development process of lung cancer. In the early stage, chest pain is mild, mainly characterized by dull pain and dull pain in the chest, and the pain location is not fixed.
4. Blood in sputum <br/>The tumor causes necrosis of lung tissue cells and broken capillaries, with a small amount of hemorrhagic signs, which are usually mixed with sputum. The sputum is mixed with blood and is characterized by indirect onset.