Wheezing, shortness of breath and a constant cough are the most common of lung disorders. This may be accompanied by fatigue, loss of weight and coughing up phlegm, often blood-stained. Wheezing is a whistling sound while breathing that is caused because of partially blocked airways.
But wheezing is not indicative of lung cancer as it is common to numerous respiratory diseases.
The initial stages of lung cancer have no symptoms at all. 25 percent of lung cancer patients discover they have the disease only when it is discovered in an X-ray that may be taken for some other reason. The other 75 percent begin to develop some symptoms. These are the direct results of the primary tumor.
Other symptoms likely to be noticed are:
- Difficulty in swallowing
- Finger clubbing or change in the shape of the fingers and nails
- A swelling in the face because of a blockage of a main blood vessel from the head
- Enlarged lymph nodes resulting in a swelling in the neck
- A pain or discomfort on the right side under the ribs
- Acute shortness of breath caused by fluid round the lungs
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