Early symptoms and precursors of lung cancer

Lung cancer is a common malignant tumor. Its early symptoms may not be obvious and therefore are often ignored. Early symptoms and signs of lung cancer may include persistent cough, chest discomfort, weight loss, fatigue, and difficulty breathing. If these symptoms occur, you should seek medical attention for evaluation in a timely manner.

1. Persistent cough: If a cough lasts for more than three weeks and is not accompanied by cold or allergy symptoms, it may be an early sign of lung cancer. This cough may be dry or bloody. The cough may appear dry, irritating, or even accompanied by a small amount of blood. This cough may gradually worsen and may be accompanied by difficulty breathing.

2. Chest pain: Chest pain may be another early symptom of lung cancer. This pain may be aggravated by deep breathing or coughing, or may occur when you are still. The pain may appear as stabbing pain, fullness, or pressure in the chest.

3. Weight loss: Unexplained weight loss, especially without changes in eating habits or increased exercise, may be one of the early signs of lung cancer. Weight loss may appear as a continuous loss of weight, and may even be accompanied by emaciation.

4. Fatigue: Continuous fatigue and weakness may be early symptoms of lung cancer. Fatigue may manifest as tiredness, weakness or lack of energy.

5. Difficulty breathing: As lung cancer progresses, you may experience difficulty breathing or shortness of breath. This may be due to the tumor blocking the airway or impaired lung function. Difficulty breathing may manifest as shortness of breath, wheezing, or shortness of breath.

In order to prevent lung cancer, we should quit smoking, avoid secondhand smoke, reduce air pollution, maintain a healthy lifestyle, have regular physical examinations, and pay attention to occupational protection. By paying attention to these details in life, we can reduce the risk of lung cancer and protect our health.