10 Early Warning Signs of Lung Cancer You Shouldn't Ignore: A chronic cough that doesn't go away or worsens over time could be an early sign of lung cancer. Even a small amount of blood in your cough should be checked immediately by a doctor. Feeling breathless or experiencing difficulty breathing during normal activities can be a sign of lung issues. Unexplained chest pain, especially when breathing deeply, coughing, or laughing, might indicate a lung problem. A persistent change in your voice, like hoarseness or a raspy sound, could be related to lung cancer. Losing weight without trying, particularly if accompanied by other symptoms, may be a red flag. Constant tiredness or lack of energy that doesn’t improve with rest could be an early indicator of cancer. Recurrent infections like bronchitis or pneumonia may be a sign that something is affecting your lungs. Don't wait for symptoms to worsen—schedule a screening at Yashoda Hospitals today.