Understand what you can do to help your child stop sucking his or her thumb. Thumb sucking is a common habit among children. Thumb sucking isn't usually a concern until a child's permanent teeth come in.
Thumb sucking is a behavior found in humans, chimpanzees, captive ring-tailed lemurs, and other primates. It usually involves placing the thumb into the mouth.
If your newborn is sucking her thumb, don't worry. Here's why babies suck their thumbs, how it benefits them and what to do if you're.
It's OK for infants and toddlers to soothe themselves by sucking a thumb or finger, experts say. But if that child enters kindergarten with his hand in his mouth.