Lung cancer is a serious disease that we have heard of. It is also the most common malignant tumor in our country. Its incidence rate ranks first among various diseases. So what are the body warnings that tell us that lung cancer is present? Let’s take a look at the early symptoms of lung cancer. Early detection and early treatment will prevent you from losing your precious life easily.

1. Severe cough. Coughing is very common in our daily lives. Many people think it is not a big problem, but if you always cough, you must pay attention to this issue. If the cough is caused by lung cancer, it is actually the tumor irritating the epithelial tissue of the trachea. This kind of cough is mainly dry cough, and ordinary cough medicine is generally of no use.

If lung cancer causes lung infection, it will cause fever and start to cough up sputum. If you just use ordinary anti-inflammatory therapy, the fever can subside, but the cough will always exist. At this time, in-depth examination is needed. Check to see if there are cancer cells in the lungs.

2. Hemoptysis and blood in the sputum. Some elderly people often spit, and if there are blood streaks in the sputum, they should be alert, because the blood vessels of tumor tissue are very rich and fragile. When they cough violently, they can easily burst the blood vessels and cause bleeding, and the tumor can also It will cause local tissue necrosis and shedding, and as sputum is spit out, blood will ooze from the surface of the tumor. If you cough up blood continuously, you should pay attention to whether there is a tumor in your body. If the amount of hemoptysis is very large, it may be life-threatening and must be treated as soon as possible.

Three, chest pain and back pain. Lung cancer also manifests as chest pain and back pain. After the tumor spreads, it will compress the chest cavity. When persistent pain occurs in the chest, you should go for a physical examination quickly.