How to Get Rid of a Lisp at Home: Simple Exercises for Adults and Kids

How to get rid of a lisp starts with three simple things: finding out which type of lisp you have, resting your tongue just behind your upper front teeth, and practicing a clean “s” for about ten minutes a day. Most frontal lisps ease within a few weeks, while lateral ones can take a few months. The same retraining idea sits behind Stop Stuttering, since both are speech habits, and habits can change once you see what your mouth is really doing.

Some people deal with both at the same time, and the frustration adds up quickly. If that sounds like you, online stuttering therapy with a Certified Stuttering Specialist can run alongside the lisp exercises below, so you are working on clarity and confidence together instead of one at a time.

What Is a Lisp and Why Does It Happen?

A lisp mainly affects the "s" and "z" sounds, and sometimes "sh," "ch," and "j." It has nothing to do with intelligence or effort. In most cases it is simply a motor habit that was learned early and repeated thousands of times.

The Four Common Types of Lisp

• Interdental (frontal) lisp: The tongue pushes out between the front teeth, so "sun" sounds like "thun." This is the most common type and usually the easiest to correct at home with a mirror and steady practice.

• Dentalized lisp: The tongue presses flat against the back of the front teeth instead of resting just behind them. The sound comes out muffled and dull rather than crisp.

• Lateral lisp: Air escapes over the sides of the tongue instead of through the center, which creates a wet, slushy "s." This type often needs more patient, guided work because the whole airflow pattern has to change.

• Palatal lisp: The middle of the tongue touches the roof of the mouth while making "s," which produces a muddy sound that is hard to pin down.

Common contributors include habits carried over from baby teeth, tongue thrust, a tight tongue tie, gaps in the teeth, and orthodontic changes. If you suspect a tongue tie or a bite problem, a quick check with a dentist is worth it before you begin.

What Type of Lisp Do You Have?

The exercises that help one type of lisp do very little for another, so figuring out your type first saves a lot of wasted effort. There are four main types:

1. Frontal lisp (also called an interdental lisp): Your tongue pushes forward between your front teeth when you say "s" or "z," so the word "sun" sounds more like "thun." This is the most common type and also the most responsive to at-home practice.

2. Lateral lisp: Instead of flowing down the center of your tongue, air escapes over the sides. The result is a wet, slushy "s" that some people describe as sounding like saliva getting in the way. This one is harder to fix independently and usually benefits from at least a few sessions with a speech therapist.

3. Dentalized lisp: Your tongue presses too firmly against the back of your front teeth rather than resting lightly behind them. The "s" comes out dull and muffled. This type responds well to targeted drills.

4. Palatal lisp: Your tongue touches the soft palate at the back of your mouth during sounds where it shouldn't. It's the rarest of the four and almost always needs professional guidance to correct.

How to Get Rid of a Lisp at Home: A Step-by-Step Plan

You don't need special equipment. A mirror, a phone for recording, and ten focused minutes a day will take you a long way.

How to Fix a Lisp on Your S

• Find the right spot: Rest the tip of your tongue just behind your upper front teeth, on the small bumpy ridge. It should sit close to the teeth without touching them. Some people get a cleaner sound with the tip behind the lower teeth, and that works too as long as the tongue stays behind.

• Close your teeth lightly: Bring your teeth almost together and smile a little. That narrow gap focuses the air into a sharp, clean stream.

• Aim the air down the middle: Blow gently so the air travels along the center groove of your tongue. A good "s" sounds like a tire slowly losing air.

• Check the mirror: If you can see your tongue, it has drifted too far forward. Pull it back and try again.

How to Fix a Lisp With S Using the "T" Trick

Say "t" quickly several times: t, t, t, t. Then hold the last one and let the air keep flowing: "tsssss." Your tongue already knows exactly where "t" lives, and that spot is almost identical to the spot for a clean "s." For a lateral lisp, place a thin coffee stirrer straw down the center of your tongue and push the "s" through it. When the air hits the far end of the straw, you'll feel what central airflow is supposed to be like.

Build From Sounds to Sentences

• Syllables first: Practice "sa, see, so, sue," then flip them to "as, ees, ohs, oos." Stay here until the sound feels easy and not forced.

• Then words: Start with words that begin with s (sun, sip, soap), then words that end with it (bus, glass), and finally words with s in the middle (missing, basin).

• Use contrast pairs: Alternate sink and think, sum and thumb, sick and thick. This trains your ear to catch the difference, which matters as much as training your tongue.

• Read aloud daily: Five minutes of reading aloud gives you hundreds of s sounds in real rhythm. Record it once a week so you can hear your progress.

How to Fix a Lisp in Adults

People often assume adult speech habits are locked in. They aren't. The brain stays adaptable throughout life, and the regions that plan speech movements, including Broca's area, keep responding to repetition at any age. What makes it harder for adults is that the old sound runs on autopilot, and that self-consciousness can make you tense up at exactly the wrong moment.

How to Fix a Lisp as an Adult Without Feeling Self-Conscious

• Practice where nobody is listening: The car, the shower, and a quiet walk are ideal. Low pressure lets your mouth learn without your nerves getting in the way.

• Pick one target word a day: Choose a word you say often, like "yes" or "so," and aim to say it cleanly every time that day. Small wins build automatic habits faster than long, occasional sessions.

• Don't overcorrect: An exaggerated hiss draws more attention than the lisp did. Aim for a relaxed, natural "s."

Adults who also experience speech blocks often find that tension makes both issues worse. Pairing lisp drills with proven stuttering therapy techniques helps keep the whole speaking system calm and in control.

How to Fix a Lisp Without Speech Therapy

Frontal and dentalized lisps in teens and adults often improve well with consistent self-practice using the steps above. Lateral and palatal lisps can be more stubborn. If you see no change after two or three months of daily work, or if you suspect a physical cause, it makes sense to get an expert opinion. Our overview of speech therapy for speech impediment explains what that support can look like.

How to Fix a Lisp in a Child

Frontal lisps are very common in young children, and many fade naturally as teeth and tongue control develop. A clean "s" usually settles by around age 7 or 8. Until then, be gentle. Model the sound clearly yourself, turn practice into games like "snake sounds," and avoid correcting your child in the middle of a sentence. Parents sometimes confuse a lisp with early stuttering, so if you're also hearing repeated sounds or stretched words, our post on 2 year old stuttering can help you tell the two apart.

How Long Does It Take to Fix a Lisp?

It depends on the type of lisp, your age, and how consistently you practice. A mild frontal lisp often improves within a few weeks to a few months of daily drills. A lateral lisp can take six months or longer. The slowest stage is almost always carryover, which means using the new sound in everyday conversation without having to think about it. Stick with it through that stage, because it is where the change becomes permanent.

The Neuroscience Behind Changing a Speech Habit

Every time you repeat a sound, you strengthen the brain pathway that produces it. That principle sits at the heart of the Neuroscience Method®, created by Lee Lovett to help people stop stuttering. It is built on three pillars: speech tools, reading aloud, and mind training. More than 300 former stutterers have used it to replace old speech habits with new ones. The same idea helps anyone working on a lisp: consistent practice builds the new pathway, and a calm, confident mindset keeps the old one from taking over under pressure.

How to Fix a Lisp at Home: Step-by-Step Exercises

The Mirror Technique

A frontal lisp is a placement problem you can actually see, which makes a mirror your most useful tool.

1. Stand in front of a mirror and say "s" at your normal pace. If you can see your tongue between your teeth, that's the issue right there.

2. Your tongue tip should sit just behind your upper front teeth, not push through them.

3. Say "t" slowly and notice exactly where your tongue lands. That ridge just behind the upper teeth is the right position.

4. Hold that position and push air forward. That gentle airflow through the gap is your "s."

5. Practice in isolation first (just the "s" sound, ten times), then move into single words: sun, sit, see, sand.

6. Record yourself on your phone and listen back. Your ear will catch things a mirror can't.

The Exploding T Technique

1. Say "t" four times quickly back to back: t, t, t, t.

2. On the fourth one, hold the position and let it slide forward into an "s": t-t-t-tssssss.

3. That "s" at the end has the right tongue placement built in by the "t" in front of it.

4. Sit with that feeling for a moment, then try to make the same "s" without the lead-up.

5. Once it sounds right on its own, bring it into words. Start with "sun," "sit," "say," and "so."

The Straw Technique

Lateral lisps involve airflow going sideways instead of forward, and a straw gives you immediate feedback on which direction it's actually going.

1. Hold a thin drinking straw lightly between your lips in the center.

2. Try to produce "s" and aim the airflow through the straw.

3. If air is spilling to the sides, you'll feel it moving away from the straw rather than through it.

4. The goal is one steady central airstream. If you can feel air moving through the straw, the positioning is getting closer.

A lateral lisp usually needs at least some feedback from a speech therapist to fully correct, because it's nearly impossible to feel where the air is going without trained guidance. But this drill builds awareness, which is a solid starting point.

Frequently Asked Questions

Does a lisp go away on its own?

In young children, often yes. Many frontal lisps fade by age 7 or 8 as teeth and tongue control develop. In teens and adults it rarely disappears without practice, because the habit is already well set. If your child still lisps after that age, a speech therapist can take a look.

Can a tongue tie cauCan a lisp to be corrected in adults?

Yes. Adults correct lisps all the time, because the brain keeps learning new mouth movements at any age. The catch is that an adult’s old “s” runs on autopilot, so it takes steady daily practice to replace it. Expect a few weeks for a frontal lisp and a few months for a lateral one.

What does lisp speech therapy involve?

A speech therapist listens to your “s” and “z” sounds, checks where your tongue sits, and shows you how to move it. You then practice on single sounds, syllables, words and sentences, with short drills to do at home. Most of the progress comes from those home drills, so the sessions mostly keep you on track.

How long does lisp treatment take for adults?

A mild frontal lisp often eases within four to eight weeks of daily practice. A lateral lisp can take six months or more, since the airflow pattern has to change. The slowest part is carryover, which means keeping the clean “s” when you talk fast, feel tired or get nervous.

Why does my lisp come back when I talk fast?

Fast speech gives your tongue less time to land in the right spot, so it slides back to the old habit. Stress and tiredness do the same thing. Slow down for a few sentences, reset your tongue just behind your upper teeth, and keep practicing at a normal pace until the new “s” holds up.

se a lisp?

It can. A tight tongue tie limits how far the tongue tip lifts, which makes it hard to place it behind the upper teeth. Not every lisp has this cause, though. A dentist or speech therapist can check under the tongue quickly, and that’s worth doing before you put weeks into drills.

Speak Clearly and Confidently, One Sound at a Time

How to fix a lisp isn't a mystery. It is a skill you build with correct tongue placement, focused airflow, and daily repetition. Start small, stay consistent, and celebrate every clean "s" along the way.

If stuttering is part of your speech story too, you don't have to figure it out alone. Book a free consultation with our team of former stutterers and take the next step toward speaking freely.