The treatment of stage IIa squamous lung cancer is mainly based on surgery, or synchronized radiotherapy and chemotherapy. 1. Surgery: patients with stage IIa squamous lung cancer need to undergo surgery first in order to remove cancer cells and avoid metastasis. For early stage squamous lung cancer, thoracoscopic pneumonectomy is often used as this kind of surgery requires low lung function and causes little damage to human body. 2. Radiotherapy: if the patient’s physical condition does not allow surgery, simultaneous radiotherapy can be implemented. Synchronized radiotherapy is very damaging to the body, so it is necessary to do a good job of post-care. Commonly used drugs include platinum-containing two-drug chemotherapy. Patients with stage IIa squamous lung cancer have mild symptoms and often need to cooperate with physical examination for diagnosis. Therefore, if there is persistent cough, chest tightness and coughing up blood, one should consult the doctor as early as possible and follow the medical advice for treatment.