Necrosis: Tissue death can be caused by surgery or by issues that arise after the procedure. In most cases, necrosis is minor or completely absent, and normal wound healing removes any dead tissue from the incision area.
Bleeding: As with any surgical procedure, bleeding can and will occur. Bleeding becomes an issue when it is excessive, or continues after the wound should have healed. Post-surgery bleeding can be a sign that the patient is being too active too soon after the procedure.