It is not scientific to say that “lung cancer itches in three places”. Early stage of lung cancer may not have obvious symptoms, but when the disease develops to a certain extent, respiratory symptoms such as coughing, coughing sputum, hemoptysis, chest tightness, chest pain, etc., or symptoms related to distant metastasis may appear.
In the early stage of lung cancer, the lesion is small and may not have obvious symptoms. As the disease progresses, respiratory symptoms such as cough, sputum, hemoptysis, chest tightness and chest pain may appear. Systemic manifestations such as emaciation, fatigue and fever may also appear.
Lung cancer in advanced stage may also have symptoms related to distant metastasis, such as brain metastasis with headache and convulsion, liver metastasis with pain in right upper abdomen, nausea and vomiting and other digestive symptoms.
If you have lung cancer, you cannot rely on symptoms alone to confirm the diagnosis, you need to go to the hospital, make a clear diagnosis according to the condition and relevant examination, and treat it actively to avoid delaying the condition.