The need to cut off the ribs for lung surgery is based on the specific nature and size of the lung lesion. 1. If the lung lesion is benign and the volume of the lesion is small, the lesion can be removed through minimally invasive thoracoscopic surgery without cutting off the ribs. If the lesion is malignant and the size of the lesion is larger than 5 cm, thoracoscopic minimally invasive surgery cannot completely remove the tumor in the lung. In this case, traditional open-heart surgery is required, and in order to fully reveal the surgical field, part of the ribs need to be cut off to completely remove the lung lesion and perform lymph node dissection at the same time. The surgery is relatively traumatic and the patient may suffer from postoperative complications such as lung infection and bleeding, and it takes 2-3 weeks to recover completely.