In the first stages, there are often no symptoms, but early detection and … In the United States, lung cancer is the second most common cancer and the leading cause of death from cancer. So what is usually the first sign of lung cancer? : Lung cancer may not have symptoms early on. Once lung cancer has advanced, it usually causes more noticeable symptoms such as back pain, headaches, weight loss, and fatigue. Stage 1 and Stage 2 Lung Cancer… Chest pain that is often worse with deep. Diagnosing lung cancer at an early … Especially middle-aged and older smokers should have regular check-ups. When the first signs and symptoms do occur, they may include cough, chest pain, weight loss, poor appetite, shortness of breath and other symptoms. It is extremely important to recognize early signs of lung cancer. Approximately 90% of lung cancer cases and 80% of all lung cancer deaths are caused by smoking, making this the leading cause of this deadly disease. Bone pain is also common, because that’s where lung cancer … What is usually the first sign of lung cancer? Heavy smokers are especially at risk, with 24.4% of males and 18.5% 0f women who smoke heavily developing lung cancer. Lung cancer is a common disease today and ranks second after cardiovascular diseases among the causes of death. What Is Usually the First Sign of Lung Cancer? The most common symptoms of lung cancer are: A cough that does not go away or gets worse. Lung cancer is the leading cause of cancer …