My suggestion is to eat more food from protein, but not too much. If it is a minor operation, you can eat normally through a small incision. If the incision is large, and older patients can add a little more protein to speed up the healing of the incision, for example, you can put a few slices of ham in the soup. But I want to point out that if the incision is in a relatively exposed part, don't eat snakehead. Although the wound will grow faster, it may make the incision keloid ugly.