Thumb Sucking

The habit of putting a thumb in one's mouth and sucking it in rhythm. Done by babies as a reflex, the same one responsible for Breastfeeding.

Thumb sucking usually stops by the age of four, although some children may continue it as a habit.

Examples

See also

• Pacifier
• Biting Own Thumb
• Licking Finger
• Finger In Own Mouth
• Thumb To Mouth

External links

• Wikipedia: Thumb sucking