Is lung cancer contagious after a physical examination? Here are some common knowledge about lung cancer

We may all be familiar with lung cancer. In the eyes of many people, they have heard of lung cancer, but they don't know much about it. People don't know some of its characteristics, because most people see some reports about lung cancer on TV or in advertisements, but they haven't heard clearly from experts. They just have a general understanding of the hazards and effects of lung cancer. So many people want to know if lung cancer is contagious? If you are with a patient with lung cancer, will it be dangerous? How should lung cancer be treated and can it be completely cured? These are all things people want to know. We may all be familiar with lung cancer. In the eyes of many people, they have heard of lung cancer, but they don't know much about it. People don't know some of its characteristics, because most people see some reports about lung cancer on TV or in advertisements, but they haven't heard clearly from experts. They just have a general understanding of the hazards and effects of lung cancer. So many people want to know if lung cancer is contagious? If you are with a patient with lung cancer, will it be dangerous? How should lung cancer be treated and can it be completely cured? These are all things people want to know. First of all, we need to have a certain understanding of lung cancer. Only in this way can we better treat lung cancer. In the early stage of lung cancer, there are often no obvious symptoms, which is very deceptive. Many people do not care and miss the best time for treatment. However, in the middle stage, coughing will occur, and people will think it is a cold. The treatment is not appropriate, and many people will not think too much. However, in the late stage, when coughing occurs, there is blood in the sputum, and there will be chest pain. At this time, it is often in the late stage, and it is very difficult to treat. There is basically no hope of cure. Knowing the symptoms of lung cancer, is lung cancer contagious? Many people want to know this, because the incidence of lung cancer is increasing year by year, and many people will encounter patients with lung cancer. In this regard, experts say that lung cancer is not contagious, and you can contact it with confidence without worrying too much. So how is lung cancer caused? Why is it so harmful? First of all, smoking is the biggest inducing factor. There are many chemical substances in tobacco, including a lot of carcinogens, which can cause cell cancer and thus lead to lung cancer. Secondly, the working environment and living environment are also important factors in causing lung cancer. Of course, some patients with tuberculosis and pneumonia may develop lung cancer if they are not treated in time. As for the treatment of lung cancer, many of them just prolong the patient's life through surgery and chemotherapy.