Is early stage lung cancer contagious?

Is early-stage lung cancer contagious?

Lung cancer is a common malignant lung tumor. The vast majority of lung cancers originate from the bronchial mucosal epithelium. In the early stages, there are often respiratory symptoms such as irritating cough and blood in sputum. Almost all lung cancer patients have a morbidity related to smoking. In fact, lung cancer is not contagious, but it can spread.

Lung cancer is not an infectious disease, so it is not contagious to others. Common traditional treatments for lung cancer include surgery, radiotherapy, and chemotherapy. Although radiotherapy and chemotherapy can effectively kill tumor cells, they can also have certain side effects on normal cells in the patient's body, such as hair loss, nausea and vomiting, and loss of appetite. Surgery is a conventional method of tumor treatment, which usually works well in the early stages of the disease, but it is difficult to remove small lesions and has a high recurrence rate.

Three conditions must exist for infection to occur:

The three conditions of infection source, transmission route and susceptible population are indispensable. The incidence of lung cancer is affected by the environment and is also regional. Generally speaking, the incidence of lung cancer in remote suburbs is relatively low. This is because the higher the population density in cities and towns, the worse the air quality, so China's urbanization will also have a negative impact on the health of residents.