Treatment of Adults Suck Their Thumbs.
Thumb sucking is a natural, reflexive
behavior that helps infants soothe themselves and learn how to accept
nourishment.
The majority of newborns demonstrate
thumb, finger, or toe sucking behaviors within hours after birth. Many even
sucked their thumbs in utero.
Thumb sucking is common among babies,
toddlers, and young children. Many kids who suck their thumbs stop doing so
without intervention once they reach school age.
Others respond to mild forms of
intervention from their parents.
No specific data exists that indicates
how often thumb sucking continues into the teen and adult years. However,
anecdotal evidence suggests that there are many adults who suck their thumbs —
perhaps as many as 1 in 10.
While most childhood thumb suckers stop
on their own, a percentage seem to continue in private for decades. For some,
thumb sucking may even be a lifelong habit.
The reasons for this aren’t completely
understood. It could be this behavior provides comfort and reduces anxiety for
those who do it.
While relatively benign, thumb sucking
isn’t without side effects, particularly to dental health.
Causes of
thumb sucking as an adult
Adults who suck their thumbs may find
that it reduces anxiety and stress, helping them to calm down.
It’s possible that some adults who suck
their thumbs experienced trauma during childhood and turned to the behavior to
calm themselves down during that time. In some instances, the behavior may
simply stick, making for an easy-to-access stress reliever.
Thumb sucking may also become a habit
that’s almost involuntary, used to relieve boredom in addition to stress.
There is anecdotal evidence indicating
that some people with trichotillomania, a condition earmarked by an
irresistible urge to pull out scalp, eyebrow, or body hair, also thumb suck.
Age regression is a condition in which a person displays behaviors
more typical of people who are younger than them. Thumb sucking is sometimes
associated with this condition.
Thumb sucking doesn’t have many adverse
effects in children with baby teeth. However, once permanent teeth come in,
thumb sucking may cause problems with tooth alignment.
In adults, problems with bite and oral
health may worsen unless they are addressed, either by getting braces or by
stopping the behavior.
The side effects of thumb sucking may
be more pronounced if you suck your thumb vigorously or often.
Thumb sucking in adults can cause
several other side effects:
Misaligned teeth (dental
malocclusion)
Thumb sucking can create problems with
the proper alignment of teeth, causing conditions such as an overbite to occur.
The upper and lower teeth may also
begin to slant outward. This is known as an anterior open bite.
In some instances, the lower incisor
teeth may begin to tip toward the tongue.
During vigorous thumb sucking, the
cheek muscles flex. This may work to alter jaw shape and cause crossbite,
another type of tooth misalignment. Changes to jaw shape can also affect facial
appearance.
Changes to the roof of the mouth
Thumb sucking can cause the roof of the
mouth to indent and become concave. The roof of the mouth may also become more
sensitive to touch and sensation.
Oral infection
Without vigilant hand washing, thumb
sucking may introduce dirt and bacteria into the mouth, potentially causing an infection in
a tooth or in the gums.
Problems with the thumb
Vigorous or long-term thumb sucking can
change the shape of the thumb, making it thinner or elongated.
It can also dry out the skin of the
thumb, causing it to crack, bleed, or become infected.
Long-term thumb sucking can also cause
callouses to form on the thumb.
Difficulties with speech
The dental problems caused by thumb
sucking can result in speech problems, such as lisping.
Are there any benefits?
For some adults who suck their thumbs,
stress reduction and alleviation of symptoms stemming from anxiety may
be a significant benefit. No other benefits have been identified in either
research or anecdotally.
How to stop adult thumb sucking
Some adults have reported that they
were able to stop sucking their thumbs by making a decision to do so and
sticking to it. This may not work for everyone, especially if the behavior has
become a long-term or subconscious habit.
Home remedies
If possible, try to identify the
triggers in your life that prompt you to suck your thumb. Anticipating when the
behavior occurs may help you reduce it by giving you time to substitute
stress-relieving techniques, such as deep breathing, meditation, and exercise.
Strategies such as covering your thumb
with fabric or with a foul-tasting substance may work.
Keeping your hands busy with a fidget
toy or a stress ball may help you to get past the urge.
Other things to try include popping a
mint or stick of gum into your mouth when you feel the desire to suck your
thumb.
Seeing a mental health professional can
provide you with other tools and coping mechanisms. Behavioral therapy has
been well documented as discouraging negative activities.
Th'e takeaway
There is no specific data on adult
thumb sucking, but it may be more common than people realizecv .
Like childhood thumb sucking, adult
thumb sucking may cause or worsen problems with bite and speech.
If you’re looking to stop thumb
sucking, consider talking to your doctor. They may have additional suggestions
for helping you quit the habit.
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