Cough
Coughing appears as a persistent symptom in the early stages of lung cancer and sometimes causes chronic pain when a person coughs. The tumor present in the bronchi and airways causes inflammation and stimulates coughing, producing blood with regular coughing. Persistent and frequent coughing episodes are common in the earlier stages of lung cancer in the majority of the patients. The cough gets worse by time and leads to chronic coughing as the tumor grows. Sometimes in the advanced stages of lung cancer, blood production with a cough is a significant health risk. The persistent coughing episodes increases the pain in the chest, shoulders, and chest.