The American Cancer Society claims that the second most frequent and fatal cancer for both men and women is the lung cancer. Even though, it is believed that only the active smokers are at risk of experiencing lung cancer, surprisingly about 20 % of the lung cancer deaths are non-smokers.

According to the American Cancer Society, radon gas, air pollution, second-hand smoke and cancer agents, such as diesel and asbestos are the greatest reasons for lung cancer. Being aware of the earliest signs and symptoms of the lung cancer is the best way to fight against it. The chances for recovery are greater, if the lung cancer is diagnosed as soon as possible. The article below gives the most frequent lung cancer signs and symptoms. They are:

1. Constant illnesses

If you constantly experience some disease or illness, such as flu, cold, pneumonia or bronchitis, you should consult your doctor about the possibility of weak immune system. According to Dr. Kelley, as soon as the cancer settles down in the bronchial tubes and the lung tissue, the lungs get more prone to diseases and illnesses.

2. Sudden loss of weight

If you have no appetite or you feel fed, lung cancer may be the main reason for it. According to Dr. Kelley, people should take down notes of symptoms or health causes, like food allergies, food poisoning, gastrointestinal illnesses, PMS in women, etc. If the health cause cannot be understood, you should consult your doctor.

3. Finger pain

Another symptom of lung cancer may be fingertips pain. That is why the lung cancer releases chemicals into the blood that prod tissue growth and bone under the finger nails and in the fingertips. According to Dr. Kelley, you should consult your doctor if you notice any thickness, clubbing or swelling of the fingers.

4. Torso pain

Another symptom of lung cancer may also be pain in the abdomen, in the chest, in the shoulder or back, which may result as a pressure from the lung cancer. Dr. Kelly claims that pain in the chest in the most common sign of lung cancer, mainly in one of four patients.

5. Hoarse voice

If your voice gets harsh or if you have difficulty in talking or swallowing, you may experience lung cancer. NHC Choices claims that you should consult your doctor as soon as you notice this sign of lung cancer, particularly when it comes together with coughing, coughing blood or wheezing.

6. Shortness of breath

Shortness of breath is a frequent symptom in women, which is usually diagnosed incorrectly as a negative effect of physical inactivity or age. It is a symptom of adenocarcinoma, which is the most frequent type of lung cancer in women.

7. Weakness in the upper limbs

Feeling weakness in the upper limbs, muscle cramps as well as loss of coordination are all signs of paraneoplastic syndrome, a state of lung cancer when tumor secret substances similar to hormones.

8. Breast growth in men

Another symptom of lung cancer in men is the beast growth under and around the nipple. According to Dr. Kelley, the breast growth is a sign of paraneoplastic syndrome which is caused by the release of proteins, hormones as well as other substances in the blood.