Lung cancer may cause the symptom of itchy throat, but it cannot be diagnosed as lung cancer based on this symptom. Itchy throat may also be caused by pharyngitis, tonsillitis and other diseases. Lung cancer patients may have symptoms such as coughing and sputum, and when the sputum is thick and cannot be coughed out smoothly, itchy feeling may appear in the throat. Symptoms such as hemoptysis, chest tightness and shortness of breath may also occur during the period of illness. However, itchy throat symptoms can also be caused by pharyngitis, tonsillitis and other diseases. Patients can go to the hospital for lung CT, sputum culture and other tests to clarify the cause of itchy throat. If the patient has abnormal lesions in the lungs, further pathologic testing can be performed. If the test result is malignant, it means that the patient has lung cancer, and the patient needs to follow the doctor’s instructions for surgery, chemotherapy, radiotherapy and other treatments. If the treatment is not timely, it may be life-threatening. If the symptoms of itchy throat persist, patients are advised to go to the hospital for relevant examinations to find out the cause of the disease.