Is lung cancer contagious in the late stage? What are the symptoms of late stage lung cancer?

Lung cancer has reached a relatively serious stage in the late stage. Patients with lung cancer not only have to endure the torture of the disease, but also have to endure the discrimination of others. Because many people who don’t know much about lung cancer think that lung cancer in the late stage is contagious. In fact, what we want to tell you is that lung cancer in the late stage is not contagious.

Lung cancer has always been a disease with a high incidence rate among cancers. Many people do not know much about lung cancer. They are afraid of lung cancer and are afraid that it will be contagious. In fact, this situation does not exist. What is the specific situation? The following is a detailed introduction to the question of whether late-stage lung cancer is contagious. Please read it carefully.

What are the symptoms of lung cancer? Is advanced lung cancer contagious?

Is advanced lung cancer contagious? Everyone thinks that "lung disease" is contagious, and this "lung disease" is tuberculosis. Patients with tuberculosis are called open tuberculosis when their sputum is positive for bacteria, which is contagious. Therefore, patients with cough, sputum, and blood in their sputum should pay attention to disease prevention. Tuberculosis is a disease transmitted through the respiratory tract, but lung cancer is different from tuberculosis. Lung cancer is a malignant tumor caused by the abnormal proliferation of local cells under the action of multiple different carcinogenic factors, which loses the normal cell morphology and dynamics.

Cancer is not contagious in general, but there are three conditions for it to be contagious: the source of infection, the route of transmission, and the susceptible population. These three conditions are indispensable, so it is not contagious in general. Most people think that tuberculosis is lung cancer, but in fact they are different. Although they are both lung problems, lung cancer is not contagious.

Cancer cells excreted through sputum rapidly degenerate and die due to the evaporation of sputum water. Even fresh sputum requires various nutrients and specific conditions to make cancer cells grow and reproduce in vitro. Scientists often have to go through a lot of hardships to succeed in cultivating a living cancer cell, so cancer is not contagious.

It has not been confirmed whether cancer cells can survive after coming into contact with the skin and digestive tract of another person. Even if cancer cells from one animal are implanted in the tissue of another animal, it is difficult for the other animal to develop cancer. This is because animals, especially humans, have a strong self-exclusion reaction, and it is difficult for external things to be accepted by the body. This is also one of the problems that make organ transplantation difficult to succeed today. Therefore, it is generally believed that cancer is not contagious, but it is also necessary to pay proper attention in life.