This trait has been removed from the database, and cannot be used or re-added. File a request on the discussion board if you disagree with this.
This character has polydactyly.
Polydactyly is a congenital physical anomaly in humans, dogs, and cats having supernumerary fingers or toes.
The extra digit is usually a small piece of soft tissue that can be removed. Occasionally it contains bone without joints; rarely it may be a complete, functioning digit. The extra digit is most common on the ulnar (little finger) side of the hand, less common on the radial (thumb) side, and very rarely within the middle three digits. These are respectively known as postaxial (little finger), preaxial (thumb), and central (ring, middle, index fingers) polydactyly. The extra digit is most commonly an abnormal fork in an existing digit, or it may rarely originate at the wrist as a normal digit does.
A single instance of the trait's use does not justify its presence.