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Lung cancer may not produce any noticeable symptoms in the early stages, and many people aren’t diagnosed until the disease has advanced. Read on to learn about nine early lung cancer symptoms, and how early screening may help people at high risk for the disease. 1. Cough that won’t quit Be on alert for a new cough that lingers.What is the first stage of lung cancer?
Stage 1: The tumor is in a single lung and has not spread to any lymph nodes or distant organs. Stage 2: The cancer has grown to be larger than 3 centimeters (cm) across and may have spread to the lymph nodes inside the lung but not to any distant organs.