There are several cases of left-sided rib bulge: 1, the left rib bulge may be a local rib chondroma, bone cyst and other lesions, for hair bulge some of which are accompanied by distension and other discomfort; 2, it may be a rib crosstalk formed by calcium deficiency as a child, for multiple bulges while similar bulges may appear on the right side; 3, it may be a deformity healing after rib trauma, congenital developmental malformation and other problems, because of a history of trauma or It has existed since childhood and there is no mobility in the pushing local bump; 4. It may be a local soft tissue mass, such as a lipoma bump, whose pushing mass has a certain degree of mobility, while the mass has a soft texture, and the source of the mass can be determined by chest X-ray examination, and of course the soft tissue mass is selected for ultrasound examination. If it is a rib bead or developmental malformation, etc., no special treatment is needed, while chondromas, etc., can be treated surgically.