Thumb Sucking vs. Pacifiers: Advantages and Drawbacks

Most children engage in thumb sucking during the first few years of life; this is normal and usually produces no harmful results. Some parents prefer to offer a pacifier as a substitute for younger children in order to prevent dental problems and ensure hygienic conditions. Some pacifiers are specially designed for teething and dental health; in some cases, parents can chill these pacifiers in order to provide soothing relief during the teething process. Both pacifiers and thumb sucking can provide comfort for babies and younger children and offer certain advantages and drawbacks to parents and children.

Thumb Sucking

Thumb sucking is one of the most deeply ingrained instincts in humans; even in the womb, babies have been observed to suck their fingers and thumbs. Babies and toddlers suck their thumbs for comfort, to relieve immediate symptoms of hunger, and as a way of asserting control over their environments. Most pediatric experts believe that thumb sucking is a natural and normal process for younger children and usually produces no ill effects unless it is engaged in too vigorously or constantly. Most children gradually stop thumb sucking on their own between the ages of six months to four years, long before any lasting damage to teeth or gums can occur.


An alternative to thumb sucking, pacifiers are typically made of a durable plastic material that can be cleaned and heat sterilized to remove any germs and bacteria. Pacifiers are used to soothe fussy babies and may become objects of attachment for toddlers, much like a security blanket or favorite toy. In some cases, pacifiers are designed to minimize dental problems even when used by older children; this is usually unnecessary, since dental issues due to thumb sucking or pacifier use do not normally occur before the age of three, when most children will have already abandoned the use of a pacifier as babyish.

Thumb Sucking Vs Pacifiers

Thumb sucking offers a major advantage over pacifiers in that the infant’s thumb and fingers are always available to provide a ready source of comfort even when no pacifier is available. Babies may be more receptive to thumb sucking than to pacifiers as well, since they are usually already accustomed to sucking their thumbs even in the womb. Pacifiers can be easily cleaned and sterilized, making them a somewhat more hygienic choice. Additionally, pacifiers can be withdrawn gradually when parents decide it’s time to discontinue this habit, while thumb sucking cannot be taken away in this manner. Pacifiers typically are more useful during teething as well, since they offer sufficient resistance and can be chilled to provide soothing comfort for gums during this stressful period.


Pacifiers have been linked to a reduced incidence of Sudden Infant Death Syndrome (SIDS) in infants under the age of one year. Numerous studies by government agencies and research facilities have shown a positive correlation between pacifier use and lower rates of SIDS. This alone may be sufficient reason to recommend the use of pacifiers over thumb sucking in younger children. Although the mechanism by which the reduction in SIDS occurs is not well understood, it seems to relate to the increased oxygenation of the blood due to the repetitive sucking motions made by babies as they hold the pacifier, which may strengthen the breathing structures and improve the overall health of the infant.

Both thumb sucking and pacifiers can provide a valuable source of comfort and self-soothing for infants, allowing them to regulate their own emotional state and thus assert a measure of control over their environments. As a result, many pediatric experts recommend allowing one or both of these behaviors at least for the first year of life. In most cases, the decision as to whether to use pacifiers or to allow thumb sucking is a matter of personal preference, both for the parents and for the baby or toddler.

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