Which of the following is/are features of dishpan digit?: (A) Reddened finger, (B) Exceptionally clean thumb, (C) Fibrous rough callus, (D) All of the above
Answer is D. Dishpan digit
Finger of the child who indulges in sucking habit. On examination, it will provide valuable information about the habits. They are:

Reddened.
Exceptionally clean thumb / nail / finger.
Fibrous rough callus.