What If They Relapse?

Breaking a habit takes time—especially for a kid. It’s totally normal for them to relapse: they might stop for a week, then start sucking their thumb again when they’re stressed or tired. Don’t get frustrated, and don’t scold them. Just gently remind them, and go back to your positive reinforcement.

My daughter stopped sucking her thumb for two weeks, then started again when she got sick. She was tired and cranky, and her thumb was her go-to comfort. Instead of getting mad, I just said, “I know you’re feeling yucky, and your thumb makes you feel better. But when you’re feeling better, let’s try again, okay?” She nodded, and once she was feeling better, she went back to not sucking her thumb.

Remember: progress, not perfection. Even if they only go one day without sucking their thumb, that’s a win. Celebrate the small victories, and be patient. Eventually, they’ll stop for good. It might take a few weeks, a few months, but they’ll get there—with your support.

Special Cases: When Thumb Sucking Is a Sign of Som

Most of the time, thumb sucking is just a normal comfort habit. But sometimes, it can be a sign that your kid is feeling extra anxious or stressed. If your kid is sucking their thumb more than usual—especially if they’re older (6+) and had stopped before—it might be a sign that something is bothering them.

For example, if they started sucking their thumb again after a move, a new sibling, or starting school, it’s probably their way of coping with the change. In this case, the best thing you can do is talk to them about their feelings, and help them find other ways to soothe themselves. If the habit persists, you might want to talk to a pediatrician or child psychologist to rule out any underlying anxiety.

My friend’s son started sucking his thumb again when his little sister was born—he was feeling left out and anxious. They talked to him about his feelings, made sure he had one-on-one time with each parent, and gave him a special “big brother” job. Once he felt more secure, he stopped sucking his thumb again.

Thumb Sucking Is Normal—Don’t Stress Too Much

At the end of the day, thumb sucking is a normal, healthy part of childhood. Most kids stop on their own, and their teeth are just fine. The only time you need to worry is if the habit continues past age 6 or 7, or if you notice changes in their tooth alignment.

And even if they do need a little help breaking the habit, it’s not a big deal. With gentle encouragement, positive reinforcement, and maybe a little help from the dentist, your kid will kick the habit in no time. And if they end up needing braces later? That’s okay too—plenty of kids get braces, and it’s a small price to pay for a healthy, straight smile.

The most important thing is to be patient and supportive. Your kid isn’t doing anything wrong by sucking their thumb—they’re just trying to feel safe in a big, scary world. So take a deep breath, relax, and let them grow at their own pace. Before you know it, they’ll be too busy playing, laughing, and exploring to even think about sucking their thumb.

And if you ever have questions or concerns, just talk to your pediatric dentist. They’re the experts, and they’ll be able to give you personalized advice for your kid. You’ve got this, and your kid’s smile is in good hands. After all, a little thumb sucking now is just a tiny blip in the grand scheme of their childhood—and their smile will be all the brighter for your love and support.