Symptoms Of Lung Cancer
Symptoms Of Lung Cancer 

Lung cancer is the second most diagnosed form of cancer in both men and women. It is important to detect early signs as early detection makes all the difference to the long-term success of the treatment and its effectiveness.

About 14% of new cases of cancer are lung cancers. In the United States alone in 2016, an estimated 224,390 new cases were recorded and resulted in the deaths of nearly 158,080 people. Each year, the lung cancer mortality rate is higher than that of colon, breast and prostate cancer combined, making lung cancer the leading cause of cancer death. The risk of developing lung cancer in men is about 1 in 14 and in women, 1 in 17.

Different types of lung cancer

There are two main categories of lung cancer, small cell lung cancer and large cell lung cancer. Each individual is diagnosed by observing the cells using a microscope. Small cell lung cancer is more aggressive, it takes shape in the lung tissue and can spread to other parts of the body. Under the microscope, the cancer cells appear small and have an oval shape. Large cell lung cancer is the most common. There are three genres: squamous cell carcinoma, large cell carnomata and adenocarcinoma.

Early signs and symptoms:

But what are the signs you need to pay attention to? Several signs and symptoms mark the onset of lung cancer. Here are the first:

- Cough that worsens or does not go away.
- Constant chest pain, aggravated by deep breathing or coughing.
- Hemoptoic sputum (that is, sputum containing blood).
- Shortness of breath.
- Wheezing.
- Frequent pulmonary infections (bronchitis or pneumonia).
- Tired.
- Problems to one eye.
- Sweating reduced or absent from the same side of the face as the affected eye.
- Hoarseness.
- Loss of appetite.
- Weight loss.
- Pulmonary collapse.
- Severe shoulder pain.

Late signs and symptoms:

- Accumulation of fluid around the lungs.
- Bone pain.
- Jaundice.
- Dysphagia (difficulty swallowing).
- Syndrome of the superior vena cava.
- Neurological changes (weakness, headache, numbness in a limb, dizziness, seizures).
- Lymph nodes in the neck or above the collarbone.

The causes of Lung Cancer 


The incidence of lung cancer is strongly related to smoking. It accounts for about 90% of lung cancer cases. Residents with a smoker are 24% more at risk.


Exposure to asbestos is another cause of lung cancer. Silicate fibers may persist for life in the lung tissue following exposure. For a long time, this material has been widely used as an insulator, so it is very likely that you have been exposed without knowing it. Although its use is prohibited, it is one of the origins of lung cancer and mesothelioma. People who have been exposed are 5 times more likely to develop lung cancer. The risk is increased if the person smokes.


Radon is a natural, chemically inert gas. It is derived from uranium and is believed to cause lung cancer. He is responsible for about 12% of all deaths.

Air pollution

Air pollution from cars and industrial by-products is also a source of lung cancer. Up to 1% of lung cancers are attributable to polluted air. Experts believe that prolonged exposure to this air carries risks similar to passive smoking.

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