In the midline of nipple, the incision of wound has been reduced from more than 20 cm to about 5 cm, and minimally invasive heart surgery has basically been introduced. There are cases. As for the wound, skin grafting should be possible. Anyway, it is a novel, which always deviates from reality, but it does not violate realism. Skin grafting is not impossible. It's always much better after severe burns and skin grafting. As for the straight surgical scar, please consider it.