There is no such thing as 15 symptoms of female lung cancer in early stage. Female lung cancer may have no obvious symptoms in early stage, but may also have symptoms such as cough, blood in sputum, chest pain, fever and so on. 1. Cough: Cough may be caused by tumor stimulating bronchial tubes, which usually manifests as irritating dry cough with no obvious cause, and there may be a small amount of foamy sputum. 2. Blood in sputum: As the tumor contains abundant blood vessels, coughing may cause the blood in the tumor to be discharged with sputum, which may be manifested as a small amount of blood in sputum, and recurring intermittently. 3. Chest pain: as the tumor is located near the pleura, early stage lung cancer patients may have dull pain or hidden pain in the chest, which is especially obvious when coughing or breathing. 4. Fever: because the tumor blocks the bronchial tubes of lungs, resulting in obstructive pneumonia in lungs, so the symptom of fever appears. Early symptoms of female lung cancer are related to the location and size of tumor and physical factors of patients. If there are uncomfortable symptoms, one should go to the hospital in time and ask the doctor to make clear diagnosis and treatment so as not to delay the condition.