The cure rate of poorly differentiated lung cancer depends on the period of disease development, the cure rate is more than 50% in early stage, and the cure rate is relatively lower in middle and late stage. Lung cancer is a kind of malignant tumor belonging to epithelial tissue, which is a very common disease. According to the different degrees of differentiation and malignancy of the tumor, it can be divided into three kinds: high differentiation, low differentiation and middle differentiation, and low differentiation lung cancer refers to the lower degree of differentiation of the tumor and the higher degree of malignancy, which is easy to recur and metastasize. 1. Early stage: Early stage patients with low differentiation of tumor cells can be completely resected by surgery, but after surgery, there is a risk of recurrence, then postoperative adjuvant chemotherapy can be carried out. The cure rate in this case is more than 50%, but even if it can’t be cured, it can prolong the life. 2. Intermediate and advanced stage: patients who are in the intermediate or advanced stage at the time of diagnosis. In this case, the only way to control the disease is through comprehensive treatment to prolong the patient’s survival, but the possibility of cure is much lower. If you are detected with hypofractionated lung cancer, you must receive specialized treatment and strive for early recovery.