Infants are born with the instinct to suck, which makes them naturally want to nurse. In fact, babies begin sucking on their fingers before they’re even born. The act of sucking on fingers, thumbs, or a pacifier helps to soothe infants and it’s perfectly natural. If the habit of sucking on fingers or a pacifier goes on for a long period of time, however, it can lead to problems, as your child grows and develops.
In order to give your child with a solid foundation for healthy development, it’s important to provide them with good oral hygiene and dental care from an early age — earlier than you might expect.