As an expert in the field of oncology, I can provide you with information on the symptoms of stage 4 lung cancer. Stage 4 lung cancer is the most advanced stage of the disease, where the cancer has spread significantly. The symptoms can vary widely depending on the location and extent of the cancer's spread. Here are some of the most common symptoms: 1. **A cough that does not go away or gets worse**: This is often one of the first signs of lung cancer. 2. Coughing up blood or rust-colored sputum: This can indicate that the cancer is affecting the blood vessels within the lungs. 3. Chest pain: This is often worse with deep breathing, coughing, or laughing and can be a sign of the cancer's spread to the chest wall or pleura. 4. Hoarseness: This can occur if the cancer is pressing on the nerves that control the vocal cords. 5. Weight loss and loss of appetite: These are common symptoms as the body's metabolism changes due to the cancer. 6. Shortness of breath: This can be caused by the cancer's effect on lung function or by the presence of fluid around the lungs. 7. Feeling tired or weak: This is often a result of the body's energy being diverted to fight the cancer. It's important to note that these symptoms can also be caused by other, less serious conditions, so it's crucial to seek medical attention for a proper diagnosis. read more >>

The most common symptoms of lung cancer are:A cough that does not go away or gets worse.Coughing up blood or rust-colored sputum (spit or phlegm)Chest pain that is often worse with deep breathing, coughing, or laughing.Hoarseness.Weight loss and loss of appetite.Shortness of breath.Feeling tired or weak.More items...read more >>