Ironically, smokers, who have the highest risk of lung cancer, tend to cough a lot and, consequently, do not seek treatment for this most common symptom. If you smoke, be aware of any changes in your cough, and meet with your doctor regularly. Consider getting checked for lung cancer every couple of months. [4] X Trustworthy Source Centers for Disease Control and Prevention Main public health institute for the US, run by the Dept. of Health and Human Services Go to source You’ll also want to note any changes in the character of the cough. You should be worried if, for example, a dry cough suddenly starts producing a lot of sputum. Likewise, you should be worried if the color of your sputum changes. In particular, keep an eye out for chocolatey brown, black, or greenish sputum. [5] X Research source
In some cases, a lung cancer patient will feel back pain that worsens the deeper that they breathe in. [7] X Trustworthy Source Cleveland Clinic Educational website from one of the world’s leading hospitals Go to source
In addition to this swelling, this pressure can also cause drooping eyelids, with one pupil becoming smaller than the other. [19] X Research source
Palpitations and tremors Puffiness in the face A bloated appearance Enlargement of the breasts in males (gynecomastia)
Exposure to other chemicals, including arsenic, coal, silica, chromium, and asbestos, may also make you more susceptible to lung cancer. These chemicals are mostly impossible to sense, however, and so are difficult to avoid. Quarry miners that work with ore or coal have an increased risk of lung cancer. [29] X Trustworthy Source Centers for Disease Control and Prevention Main public health institute for the US, run by the Dept. of Health and Human Services Go to source
