Hello, I'm a plastic surgeon in Dalian. Before this kind of operation, I used to have a table. Heart bypass surgery needs to make an incision in the middle of the sternum, and open the chest, that is, the position of the sternum, which takes about 10- 13 cm. Secondly, it needs to take a small saphenous vein from the calf. This incision is generally around 15 cm. But this incision is not stitched by a doctor, it is usually.