This is a genetic disorder whose exact causation is poorly understood, and whose consequence is that the sufferer's Cutie Mark either never appears (Type I Adermosignia, true "Adult Blank Flank Syndrome") or appears late, generally in mid to late adolescence (Type II Adermosignia, or "Adolescent Blank Flank Syndrome"). The initial condition required for Type I Adermosignia is a paired recessive gene (meaning that both parents must have the same recessive); some other genetic requirement seems