According to the American Cancer Society lung cancer is the leading cause of cancer death and second most common cancer both in men and women. Even if you think that only the smokers at risk, you should know that about 20% of lung cancer deaths are people who have never smoked in their life.
According to the American Cancer Society, passive smoking, air pollution, radon gas and carcinogens such as asbestos and exhaust are all main risk factors for this particularly lethal cancer.
Lung cancer warnings:
The best defense against any cancer, is to know its symptoms and first signs. The sooner it is diagnosed the better the chances of curing it.
Keep on reading this article to learn the symptoms and signs of lung cancer presented and commented by Dr. William D. Kelley, a globally recognized oncologist.
If you notice an increase in frequency of respiratory illnesses such as colds, flu, pneumonia or bronchitis, you need talk to a doctor about what causes weakness of your immune system. According to Dr. Kelley, when cancer starts to grow in the lung tissue and bronchi, the lungs become more susceptible to infections and diseases.
Unexplained weight loss:
If you suddenly lose interest in food or if you feel satiated quickly after you start eating, know that lung cancer can cause loss of appetite. Dr. Kelley recommends taking notes of the symptoms and possible causes, such as food allergy, food poisoning, premenstrual syndrome in women, or gastrointestinal diseases. If the cause is unexplained, refer the problem to your doctor.
You might be surprised to know that thickened, numb and sore fingers are among the typical symptoms of lung cancer. This is because pulmonary tumors release chemicals in the bloodstream, these substances stimulate the growth of bones and tissues in the fingers and under the nails.
Extreme pain in the torso:
If you experience persistent dull pain in the chest, shoulder, back or abdomen, you may actually experience pressure from a tumor in the lung. Dr. Kelley says that, chest pain is a symptom in one out of four lung cancer patients.
Change in voice
If your voice sounds a little hoarse or if you experience pain while talking or swallowing, you might have lung cancer. NHS Choices says that this common symptom is a reason to call your doctor, especially when it is accompanied by a wheezing, persistent cough or spitting blood.
Shortness of breath:
This is a common symptom in women, which is very often mis-diagnosed as a side effect of aging or inactivity. Shortness of breath is a sign of adenocarcinoma, the most common type of lung cancer in women.
Weakness in the upper limbs:
Upper limb weakness, muscle cramps and loss of coordination are symptoms of paraneoplastic syndrome, a lung cancer-related condition in which hormones are secreted by tumors.
Breast growth in men:
One less common symptom in patients with male lung cancer is breast enlargement around and under the nipple. According to Dr. Kelley this is a symptom of paraneoplastic syndrome, caused by the release of hormones, proteins and other substances in the blood and indicating the presence of tumors in the thorax.