The following traits are observed in the case of lung cancer:
- Persistent cough or hoarseness
- Breathlessness or wheezing
- Weakness or fatigue
- Chest pain along with weight loss
- Anorexia
In the case of metastasis, there can be other constitutional symptoms based on the organ involvement.

The risk factors of lung cancer are as follows:
- A family history
- Alcoholism
- Smoking or passive smoking
- Exposure to chemicals such as asbestos, environmental pollutants
- Radiation exposure

Yes, lung cancer is completely curable if it is correctly diagnosed and treated at an early stage. The combination of chemotherapy, radiotherapy and surgery can cure lung cancer at an early stage.

Lung cancer is diagnosed by:
- CT scan, MRI scan, PET scan
- Lung biopsy
- Sputum cytology
- Bronchoscopy

If lung cancer is detected, then counseling of the patient is required first. Symptomatic support like oxygen, painkillers, antibiotics needs to be administered. Further appropriate chemotherapy and radiotherapy should be provided along with surgery.