Lung cancer is not inherited from one generation to another, but it has a certain degree of familial aggregation, and people whose relatives have lung cancer are more likely to suffer from the disease than normal people. Lung cancer is a common malignant tumor, and its causes are related to daily bad habits (such as smoking), long-term exposure to dust, coal tar, formaldehyde and other substances, family genes and other factors. The causes of lung cancer are complicated and not yet clear, and lung cancer is not hereditary and will not be passed on from generation to generation. Lung cancer has a certain degree of family aggregation, and patients whose parents have lung cancer have a relatively higher chance of having the disease in their offspring. Therefore, this group of people should have regular medical checkups, develop good living habits, refrain from smoking and drinking, and ventilate frequently to prevent the disease. If there are symptoms such as prolonged coughing and throat discomfort, they need to consult a doctor in time for professional treatment.