May 18, 2026

Is Thumb Sucking Dangerous?

Thumb sucking is normal behavior for babies and young children. But just how normal? More than 75% of little ones suck their thumbs, fingers, hands, pacifiers, or other items such as the corner of a blanket during these early years. Most kids stop this behavior on their own between the ages of three and six. But how long is too long, and can it be problematic? Explorer Kids Dental would like to share more information about this common childhood habit.Why Do Babies Suck Their Thumbs?Human babies come into the world hungry, and with hunger in mammals comes an instinct to suck. This urge usually becomes less intense naturally, beginning to taper off when babies reach about six months of age. However, many babies take a liking to the practice, continuing to suck their thumbs to self-soothe when hungry, anxious, sick, bored, tired, or just trying to adjust to changes in their environment. Thumb sucking may also help them fall asleep or lull themselves back to sleep. Since it is an age-appropriate way for kids to calm and comfort themselves, many experts recommend ignoring thumb sucking with children who are preschool age or younger. They should stop in their own time when they’re ready. Can Thumb Sucking Cause Any Lasting Problems? The American Dental Association says most kids can suck their thumbs safely without damaging teeth and jaw alignment until permanent teeth start to appear around age six. It should be noted that all thumb sucking is not created equal – kids passively resting their thumbs in their mouths are less likely to have dental problems than children who are vigorous thumb suckers. However, prolonged or intense thumb sucking can alter tooth and jaw alignment, so the longer the habit continues, the more likely that orthodontics will become necessary in the future – but if the child is able to kick the thumb habit between four and six, alignment issues may resolve themselves. If your child is an aggressive thumb-sucker, consider starting to work with them to kick the habit around age four. If you notice changes in your child’s mouth or teeth, consult Drs. Jeff & Candy McComb, and if you observe evidence of speech problems, consider a consultation with your child’s pediatrician as well. How Can I Help My Child Stop Sucking Their Thumb? A child should never be punished for thumb sucking. After all, it’s a habit formed from a human instinct they were born with – and shaming only hurts their self-esteem. Children usually give up thumb sucking when they find other ways to calm themselves. (For example, if a child tends to suck their thumb when hungry, eventually they will learn to ask for a snack or look in the fridge instead.) Limit the times and places the child can suck their thumbs, such as only at naptime and bedtime. Try distraction with a substitute activity, like a fidget spinner, stress ball, or finger puppets. If your child turns to the thumb when frustrated, try to help them “use their words” to talk about how they are feeling instead. Put stickers on a chart or calendar for positive reinforcement, and give lots of hugs and praise. After an agreed-upon goal is reached, celebrate the victory so their good behavior is encouraged. It can be a frustrating process, but most kids do stop on their own if given the opportunity – and once they are in school, peer pressure can work wonders.When Should I Be Worried About Thumb Sucking?Watch out for several specific symptoms in your child that may be cause for concern: Changes in teeth or bite alignment Problems with speech Callused, chapped, or red thumbs Over 5 years old with no sign of stopping the behavior Thumb sucking can also be a symptom of anxiety and other emotional or developmental problems in kids five and older. If this seems to apply to your child and the at-home methods are just not taking root, treatment options ranging from speech therapy to behavioral therapy to devices that are attached to the thumb or the mouth do exist and have been shown to help. If you have any questions or concerns about thumb sucking, don’t hesitate to contact Drs.Jeff & Candy McComb for an appointment today!The content of this blog is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of qualified health providers with questions you may have regarding medical conditions.

Share this post

Explore more blogs

View All Posts

April 27, 2022

Can My Child's Asthma Affect Their Dental Health?

More than 26 million Americans have asthma, and it's the leading chronic disease in children. Here's how asthma might affect your child's oral health.

Read More

April 13, 2022

Could the HPV Vaccine Decrease My Child's Risk of Oral Cancer?

At Explorer Kids Dental, we may broach sensitive subjects around the ages of 11 and 12, when doctors might recommend the HPV vaccine.

Read More

March 27, 2022

What's the Right Amount of Fluoride for Your Child's Teeth?

We know you want your child to love their smile, which is why we're always happy to inform you about the right amount of fluoride.

Read More

March 13, 2022

Kids, Candy & Dental Health

Holidays bring extra candy along with them. The bacteria in your child's mouth are always ready to start producing acid that contributes to cavities.

Read More

February 27, 2022

Special Needs Dentistry: Everyone Deserves a Healthy Smile!

Everyone deserves quality dental care. Here's how Explorer Kids Dental serves patients with special needs.

Read More

February 13, 2022

Questions to Ask Before Special Needs Kids See the Dentist

Sometimes special needs kids have higher anxiety in new situations like visiting the dentist. Here are questions to ask to prepare for a successful visit.

Read More

January 27, 2022

How Baby Teeth Help Mouths Grow Up Right

Baby teeth play a crucial role in oral development. Here's why they matter more than you might think.

Read More

January 13, 2022

TruDenta® – Truly Life-Changing Dentistry

TruDenta is a drug-free dental pain management system proven to help provide relief from chronic headaches, tinnitus, vertigo, and TMJ dysfunction.

Read More

December 27, 2021

Baby Bottles & Water: It's Complicated

Water is the healthiest beverage for kids and adults, but in babies less than six months of age, water is a no-no.

Read More

December 13, 2021

Does Your Child Suffer from Bruxism?

Bruxism is the dental term for teeth grinding and jaw clenching, a habit that children and adults can develop, often without being conscious of it.

Read More

November 27, 2021

Life Hacks: One Simple Way to Protect Your Child's Smile

Sports-related injuries are the leading cause of emergency room visits for children and teenagers ages 12-17. A simple mouth guard can protect their smile.

Read More

November 13, 2021

No Tradesies: Packing Mouth-Healthy Lunches for Kiddos

The right foods in your child's lunch can set them up for success. Explorer Kids Dental shares mouth-healthy lunch ideas for school.

Read More