FUE after FUE procedures aim to restore a natural hair appearance by combining surgical and aesthetic skills, with the only limiting factor being the amount of hair in the donor area. Potential problems include grafts that are too large, a hairline placed too far forward or too broad, hair placed in the wrong direction, or unrealistic areas of attempted coverage, which can lead to scarring in the recipient or donor area. Sources of undesirable results include technical errors, planning errors, operating on patients with unrealistic expectations, and unpredictable patient characteristics.