Ongoing breaks in the flow of speech, like repeating sounds or getting stuck on words, often called stuttering. It can cause anxiety and make communicating harder.
Reviewed by the HeyPsych Medical Review Board
How common
About 5 in 100 children stutter at some point, and about 1 in 100 people still stutter as adults.
Usually starts
It usually starts between ages 2 and 7, most often before age 6.
Get checked if
Get checked if breaks in speech last more than 6 months, cause distress, or get in the way of talking with others, learning or friendships.
About 5 in 100 children stutter at some point, and about 1 in 100 people still stutter as adults. It is about 2 to 4 times more common in boys than in girls.
You are not the only one.
“I knew what I wanted to say, but the words would just get stuck in my throat. It was so frustrating.”
Academic performance
Reluctance to participate in class discussions or oral presentations may affect performance.
Social relationships
Avoidance of social situations or forming new relationships due to fear of speaking.
Self-esteem
Negative self-image related to speech difficulties.
Occupational functioning
Potential limitation in career choices or advancement in communication-heavy roles.
Most people do best with a combination. Choose a kind of treatment to see what it involves.
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Get checked if breaks in speech last more than 6 months, cause distress, or get in the way of talking with others, learning or friendships.
Everything we know about Childhood-Onset Fluency Disorder, section by section.
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“Four-year-old Alex started repeating the first sounds of words ('b-b-ball,' 'c-c-cookie') about six months ago. His parents hoped he'd outgrow it, but it's getting worse. He sometimes gets stuck and can't get the word out, which frustrates him. He's started avoiding talking in preschool.”
“Seven-year-old Emma knows all the answers in class but rarely raises her hand because she's afraid of stuttering in front of her classmates. When she does speak, she repeats sounds and sometimes stretches out vowels ('sssssnake'). A few kids have started mimicking her, which makes her feel worse.”
“Ten-year-old Marcus has been in speech therapy for stuttering since kindergarten. He's learned techniques that help, but he still blocks on certain words and avoids saying his own name because it starts with 'm.' He dreads oral presentations and sometimes pretends to be sick on those days.”
“Thirteen-year-old Sophia's stuttering gets worse when she's nervous or excited. She can talk fluently with close friends but struggles in class discussions. She's developed strategies like substituting easier words, but she worries peers think she's not smart when she stutters.”
“Sixteen-year-old Jordan has stuttered his whole life. He's learned fluency techniques and can manage his stuttering most of the time, but phone calls and job interviews are still hard. He's anxious about college, where he'll have to introduce himself repeatedly to new people.”
“Twenty-eight-year-old Rachel still stutters, though it's less severe than in childhood. She's learned to manage it and works in a field where she communicates mostly in writing. Still, conference calls and networking events trigger her stuttering and old anxieties about being judged.”
“Twenty-three-year-old David avoided phone calls throughout college, relying on texts and emails. When he got his first job, phone calls were unavoidable. His stuttering made him anxious during client calls, and he worried his boss would think he was incompetent. He finally sought speech therapy and learned techniques to reduce tension during stuttering. While he still stutters sometimes, he feels more confident communicating at work.”
“Fifty-five-year-old Linda has managed her stuttering her entire adult life. She chose careers where she could minimize speaking, but always felt she'd held herself back. After retirement, she joined a stuttering support group and began volunteer work advocating for people with communication disorders. She says she finally accepts her stutter as part of who she is and no longer feels ashamed.”
Many young children (ages 2-5) go through a phase of repeating words or sounds as their language skills develop rapidly. This is called developmental dysfluency and typically lasts weeks to a few months before resolving on its own. Childhood-Onset Fluency Disorder (stuttering) persists for 6+ months, often worsens over time, and may involve physical tension, avoidance, or frustration. If dysfluencies persist or worsen, speech-language evaluation is recommended.
Stuttering can cause anxiety about speaking, but stuttering itself is a neurodevelopmental speech disorder, not a psychological condition. Anxiety may worsen stuttering, especially in stressful situations, but it doesn't cause stuttering. Some individuals with stuttering develop secondary social anxiety due to years of negative speaking experiences. Treatment often addresses both the stuttering (through speech therapy) and the anxiety (through counseling or CBT).
Cluttering is another fluency disorder involving rapid, irregular speech rate with excessive disfluencies, making speech hard to understand. Unlike stuttering, cluttering often involves poor speech organization and awareness—people who clutter may not realize their speech is unclear. Stuttering involves awareness and often anxiety about dysfluencies. The two can co-occur, and speech-language evaluation can differentiate them.
Selective Mutism is an anxiety disorder where children consistently fail to speak in specific social situations (like school) despite speaking normally at home. Unlike stuttering, children with Selective Mutism are capable of fluent speech but are too anxious to speak in certain contexts. Stuttering involves difficulty with speech production itself, not refusal or inability to speak due to anxiety. However, children who stutter may develop anxiety about speaking and avoid certain situations, which can sometimes be confused with Selective Mutism.
"I knew what I wanted to say, but the words would just get stuck in my throat. It was so frustrating."
"Kids in elementary school would finish my sentences for me or look away when I stuttered. I started talking less and less."
"Speech therapy taught me techniques to control my breathing and slow down, which really helped. But I still avoid certain words."
"The hardest part isn't the stuttering itself—it's the fear of stuttering. I'd rehearse everything I was going to say before speaking."
"I used to think I was the only one. Finding a stuttering support group as a teenager changed everything."
"As an adult, I've learned to accept my stutter. It's part of who I am, and people who matter don't care."
No. Stuttering is a neurodevelopmental disorder involving differences in how the brain processes speech, not caused by anxiety. However, anxiety can worsen stuttering, and years of stuttering can lead to secondary anxiety about speaking. Treatment addresses both the speech disorder and any associated anxiety.
About 75% of children who stutter recover naturally, especially if stuttering begins before age 4 and they receive early intervention. However, stuttering that persists beyond age 8-10 or worsens over time is more likely to continue into adolescence and adulthood. Early speech therapy improves the chances of recovery and helps children develop effective communication skills regardless of outcome.
The exact cause is not fully understood, but stuttering has a strong genetic component and involves differences in brain areas that control speech production and timing. It's not caused by parenting, trauma, or emotional problems. Family history of stuttering increases risk.
Treatment by a speech-language pathologist (SLP) is the primary approach. Common methods include fluency shaping (learning to speak more smoothly), stuttering modification (learning to stutter more easily with less tension), and cognitive approaches to reduce anxiety. Early intervention in young children has the best outcomes. Therapy for older children, teens, and adults focuses on increasing fluency and building confidence.
No. Telling a child to 'slow down,' 'think before speaking,' or 'stop stuttering' increases pressure and anxiety, often making stuttering worse. Instead, listen patiently, maintain eye contact, avoid finishing their sentences, and model slow, relaxed speech yourself. A speech-language pathologist can guide you on how to support your child.
There's no 'cure' for stuttering, but speech therapy can significantly reduce its frequency and severity and help individuals communicate more confidently. Many people learn to manage their stuttering effectively and lead fulfilling personal and professional lives. For some, stuttering resolves completely; for others, it becomes a manageable part of who they are.
Unfortunately, children who stutter are at higher risk for teasing and bullying. Building your child's confidence, educating peers and teachers, and involving school staff in creating a supportive environment can help. Therapy that includes social communication skills and self-advocacy empowers children to respond to teasing and build resilience.
There's no medicine made specifically for stuttering. Some medicines (for example, for anxiety) have been studied but aren't widely recommended. Speech therapy is the treatment backed by good research. If a child also has anxiety that gets in the way of therapy or daily life, counseling or medicine for anxiety may be considered with a healthcare provider.
Yes. Speech therapy can help adults reduce stuttering, improve fluency, and build confidence. Many adults also benefit from support groups and self-help organizations. It's never too late to seek help. Treatment for adults often focuses on managing stuttering, reducing avoidance, and addressing social anxiety.
Monitor for 2-3 months. If stuttering persists or worsens, shows physical tension (facial grimacing, body movements), or causes frustration or avoidance, seek evaluation from a speech-language pathologist. Early intervention is most effective, especially for children under age 6.
Yes, many successful people stutter or have stuttered, including actors (Bruce Willis, Emily Blunt, Samuel L. Jackson), politicians (Joe Biden), and public figures. Their success shows that stuttering doesn't have to limit goals or achievements.
Listen patiently without rushing or interrupting, maintain eye contact, focus on what they're saying rather than how they're saying it, praise effort and communication rather than fluency, and avoid drawing attention to stuttering. Encourage activities that build overall confidence (sports, arts, hobbies). Work with their SLP to reinforce positive communication experiences.
Accommodations may include extended time for oral presentations, presenting to the teacher privately, using video or written alternatives, permission to pass when called on unexpectedly, and educating classmates about stuttering. An IEP or 504 plan can formalize these supports.
No. Stuttering has nothing to do with intelligence, cognitive ability, or language comprehension. People who stutter have the same range of intelligence as those who don't. Stuttering is solely a speech production disorder.
No, bilingualism doesn't cause stuttering. However, if a child has a predisposition to stutter, dysfluencies may appear in one or both languages. Stuttering should be assessed in both languages by a bilingual SLP when possible.
Stuttering severity naturally fluctuates. It often worsens when a child is tired, excited, stressed, or speaking in challenging situations (like presenting in class). It may improve in relaxed, familiar settings. This variability is normal and doesn't mean therapy isn't working or that stuttering is worsening overall.
No. Correcting or drawing attention to stuttering increases self-consciousness and anxiety, which can worsen stuttering. Instead, focus on listening to the content of what they're saying, respond to their message, and create a low-pressure communication environment. If you're concerned, consult a speech-language pathologist for guidance.
Childhood-Onset Fluency Disorder, by definition, begins in early childhood. If stuttering starts in adolescence or adulthood, it's called acquired stuttering and may be due to neurological injury, stroke, brain trauma, or psychological factors. This requires medical evaluation to determine the cause.
The duration varies widely depending on severity, age, and individual response. Some children show improvement in a few months, while others may need therapy for years. Therapy may be intensive initially and then shift to periodic check-ins. Lifelong management strategies may be needed for persistent stuttering.
They're the same condition. 'Stuttering' is the term used in the United States, while 'stammering' is more common in the UK and some other countries. Both refer to Childhood-Onset Fluency Disorder.
Normal developmental dysfluency affects many preschoolers (ages 2-5) and typically resolves within weeks to months. It involves occasional word or phrase repetitions without physical tension. True stuttering persists for 6+ months, may worsen over time, and often involves physical tension (facial grimacing, body movements), blocking, frustration, or avoidance of speaking. If you're unsure, consult a speech-language pathologist for evaluation.
Stuttering is a neurodevelopmental speech disorder, not caused by social anxiety. However, years of stuttering can lead to secondary social anxiety, especially if a person experiences teasing, embarrassment, or avoidance of speaking situations. Treatment addresses both: speech therapy for stuttering and cognitive-behavioral therapy or counseling for anxiety. Reducing stuttering severity and building communication confidence often reduces associated anxiety.
Both are fluency disorders, but they differ in key ways. Stuttering involves repetitions, prolongations, or blocks with high awareness and often anxiety about speech. Cluttering involves rapid, disorganized speech that's hard to follow, often with low awareness—people who clutter may not realize their speech is unclear. Stuttering includes tension and avoidance; cluttering involves rushed, irregular pacing. Some people have both. A speech-language pathologist can differentiate them through formal assessment.
Childhood-Onset Fluency Disorder begins in early childhood (ages 2-7) and is neurodevelopmental, often with genetic factors. Acquired stuttering starts in adolescence or adulthood, usually after neurological injury (stroke, brain trauma) or, rarely, due to psychological factors. If stuttering begins suddenly in an older teen or adult, medical evaluation is essential to rule out underlying neurological conditions. Treatment approaches differ based on the cause.
Stuttering is a fluency disorder affecting the flow and timing of speech, not language comprehension or expression. Language disorders involve difficulty understanding or using words, grammar, or organizing thoughts. A person can have stuttering without a language disorder, or both can co-occur. Comprehensive speech-language evaluation can identify whether one or both conditions are present, and treatment is tailored accordingly.
Stuttering is a speech production disorder where dysfluencies occur across contexts, though severity may vary. Selective Mutism is an anxiety disorder where a child is capable of fluent speech but is too anxious to speak in specific situations (e.g., school) while speaking normally at home. In stuttering, the child wants to speak but struggles with fluency. In Selective Mutism, the child is silent due to anxiety. However, children who stutter may develop avoidance of speaking in stressful situations, which can sometimes resemble Selective Mutism. A comprehensive evaluation by a speech-language pathologist and mental health professional can clarify the diagnosis.
This information about mental health conditions is for educational purposes only. If you believe you may be experiencing symptoms of a mental health condition, please consult with a qualified healthcare professional for proper evaluation and diagnosis.
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