Is lung cancer contagious or hereditary?

Is lung cancer contagious and hereditary?

Lung cancer is one of the most common malignant tumors and ranks first among malignant tumors.

In life, we may find that lung cancer is a cluster of family members, such as "husband and wife cancer", "father and son cancer" and "brother cancer".

Could it be that lung cancer can also be contagious?

This statement is of course incorrect. Infectious diseases require three conditions: a source of infection, a route of transmission, and a susceptible population. None of these three conditions can be missing. The emergence of cancer is due to the influence of carcinogenic factors, genetic genes, and other reasons, which cause the cells in the patient's body to mutate.

Although lung cancer itself is not contagious, there are many cases of family clustering and couples suffering from cancer. In particular, if there is a direct relative such as a parent who has lung cancer, the possibility of their relatives suffering from lung cancer will also increase.

This is mainly related to genetic genes, common living environment (such as people often smoking indoors), eating habits, etc., but it is not caused by infection.

In summary, cancer is not contagious, and cancer patients are not a source of infection. Lung cancer is not like some single-gene genetic diseases, which are directly inherited from parents to children, but some lung cancers have "susceptibility genes" for lung cancer, and with the addition of other risk factors, they are more likely to get the disease than ordinary people.

If a direct relative in the family is diagnosed with lung cancer, the risk of lung cancer will increase to a certain extent.

remind:

1. Smoking is the main cause of lung cancer, accounting for more than 2/3 of lung cancer. Any form of smoking or exposure to secondhand smoke increases the risk of lung cancer.

2. Kitchen fume pollution. This is probably one of the reasons why many women who do not smoke suffer from lung cancer.

3. The level of some pollutants indoors is much higher than that outdoors, especially aromatic hydrocarbons, aldehydes, radon, etc. in new homes. Frequent ventilation is required.

In addition, if there is a family history of cancer or if you suffer from chronic lung disease, your risk of cancer will also increase.

Lung cancer screening

1. LDCT is recommended.

2. It is not recommended to use chest X-ray, MRI, PET-CT, biomarker testing, etc. for lung cancer screening .