Thumb Sucking: The Good, the Bad and the Normal - Suck finger
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If your thumb or finger-sucking child is 3 years old or over, it's time to break the habit. Many articles on this subject focus on talking to your child. Infants may use pacifier or thumb or fingers to soothe themselves. File:masdemartin.info Play media. Newborn baby thumb sucking. A Bonnet macaque thumb sucking. Thumb sucking is a behavior found in humans, chimpanzees, captive ring-tailed lemurs, and.