What are the symptoms and precursors of lung cancer? Know the 4 symptoms of lung cancer early

Do you often have chest pain and sometimes hoarseness? Don't think it's just an ordinary disease. It may be a sign of lung cancer. In recent years, the incidence of lung cancer has been increasing, and the mortality rate has also been increasing. Let's take a look at the symptoms of lung cancer.

1. Chest pain:

First of all, before the symptoms of lung cancer appear, there will be a series of symptoms such as chest pain. Experts say that the chest cavity is a very complex space. Three-quarters of the surface of the lung is surrounded by the chest wall, which is composed of a thin layer of lining (parietal pleura), fat, muscle, ribs and skin in different proportions.

2. Hoarseness:

Secondly, hoarseness may also be a symptom of lung cancer. It is the most common symptom of patients with advanced lung cancer. The recurrent laryngeal nerve that controls the left side of the voice function goes down from the neck to the chest, bypasses the large blood vessels of the heart and goes back up to the larynx, thus controlling the left side of the voice organ.

3. Shortness of breath, pleural effusion:

Thirdly, the symptoms of lung cancer include shortness of breath and pleural effusion. Almost all patients with advanced lung cancer that has spread regionally have shortness of breath to varying degrees.

4. Edema of face and neck:

What are the precursors of lung cancer symptoms? There is a superior vena cava on the right side of the mediastinum, which transports venous blood from the upper limbs and head and neck back to the heart.