Cluttering vs. Stuttering: How to Tell the Difference and When Speech Therapy Can Help
- Stephanie Jeret
- Apr 1, 2024
- 16 min read
Updated: Aug 10
Does your child speak so quickly that words seem to run together? Do people frequently ask them to slow down or repeat themselves? Or do they get "stuck" on sounds and words when talking?
While many people have heard of stuttering, cluttering is much less well known. Because cluttering and stuttering can look similar—but require different treatment approaches—getting the correct diagnosis is important.
In this guide, you'll learn the differences between cluttering and stuttering, common signs and symptoms, how speech-language pathologists evaluate fluency disorders, and when speech therapy may help.
In this article, we'll cover:
What is a Fluency Disorder?
A fluency disorder is a speech disorder characterized by disruptions in the smooth flow of speech. It may be marked by differences in speech rate, rhythm, and fluency.
These disfluencies can include repetitions of sounds, syllables, words, and phrases, as well as sound prolongations and blocks. These speech disruptions may also be accompanied by physical tension, avoidance of speaking, or secondary behaviors.
Fluency disorders can vary in severity and may affect an individual’s ability to communicate effectively in social, academic, and occupational settings.. Speech-language pathologists evaluate and treat fluency disorders using individualized, evidence-based treatment approaches that support communication confidence and meaningful participation in everyday life.
There are two types of fluency disorders: stuttering and cluttering. Stuttering is the more common of the two, while cluttering is less common.
If you're specifically concerned about stuttering, learn more about my approach to Stuttering Therapy for Children, Teens, and Adults, where I explain what therapy looks like, who I work with, and how treatment is individualized.
What is Stuttering?
Stuttering is a type of fluency disorder characterized by interruptions in the flow of speech that are often accompanied by secondary behaviors.
Stuttering Disfluencies (the physical interruptions in speech)
Repetitions: Repeating sounds, syllables, words, or phrases (e.g., "why, why, why").
Blocks: Attempting to say something but being unable to get the sound out (e.g., "why-----are you here?").
Prolongations: Prolonging sounds (e.g., "llllike this").
Filler words: Using words like "uh," "um," etc., or interjections and revisions (These are common in the speech of both people who stutter and people who do not stutter.)
Secondary Behaviors
Secondary behaviors, sometimes called secondary symptoms, are reactions people may develop when they become aware of their stuttering. These behaviors can include changing words they anticipate stuttering on, avoiding certain speaking situations, or physical behaviors such as tapping a pen or blinking during moments of stuttering.
Types of Stuttering
Developmental Stuttering (Childhood-Onset Fluency Disorder): This is the most prevalent type of stuttering, usually appearing in early childhood.
Neurogenic Stuttering: This type of stuttering occurs due to brain damage or injury.
Psychogenic Stuttering: This rare form of stuttering is caused by extreme emotional trauma or stress.
Additional Factors about Stuttering
Stuttering severity can vary from day to day, hour to hour, and even from one speaking situation to another.
You may also notice that stuttering changes depending on who you're talking to or even seems to disappear when you're alone. If you've ever wondered why that happens, read my article on Why Don't We Stutter When We're Alone?
Stuttering is not related to a person's intelligence.
Some children who stutter may also have language disorders, which can affect vocabulary, sentence formulation, following directions, reading comprehension, and overall communication.
Males are at a higher risk of developing stuttering and are twice as likely as females to continue stuttering over time.
There is often physical tension associated with the stuttering moment.
Causes of Stuttering
While the exact causes of stuttering are not fully understood, several factors contribute, including neurological, genetic, and environmental influences:
Brain Function: Speaking involves the left cortex and subcortical structures like the basal ganglia and thalamus. These form a loop called the cortico-basal ganglia-thalamo-cortical loop, crucial for fluent speech. Researchers believe differences in this speech timing loop may contribute to stuttering., affecting timing cues during speech. (Source)
Genetics: Studies show that identical twins, who share the same genes, often both stutter. This suggests a strong genetic component, though environmental factors also play a role.
One gene associated with stuttering (GNPTG): If it doesn’t work well, cellular waste can build up, impacting neural signals. Poor connectivity in the speech loop can lead to stuttering.
If you'd like to learn more about the causes of stuttering, treatment approaches, and what therapy looks like, read my Speech Therapy for Stuttering: A Comprehensive Guide.
How Common is Stuttering?
Stuttering affects approximately 1% of the population. Here's a breakdown of how common it is:
Children: Stuttering is more common in children; however, many children outgrow stuttering.
Adults: Approximately 1% of adults continue to stutter.
Gender: Males are more likely than females to develop persistent stuttering.
Co-Occurring Disorders of Stuttering
Some individuals who stutter may also have other communication, developmental, or neurological disorders. Common co-occurring conditions include:
Language Disorders: Some children who stutter also have language disorders, which can affect vocabulary, sentence formulation, following directions, reading comprehension, and overall communication.
Speech Sound Disorders:
Articulation Disorders: Challenges with pronouncing sounds correctly can accompany stuttering.
Phonological Disorders: Difficulty in organizing sound patterns can affect speech clarity.
Attention-Deficit/Hyperactivity Disorder (ADHD): Characterized by inattention, hyperactivity, and impulsivity, ADHD can impact attention and focus during speech therapy.
Autism Spectrum Disorder (ASD): Children with Autism Spectrum Disorder may exhibit stuttering alongside difficulties with social communication and other behaviors.
How Stuttering Can Impact Daily Life
Stuttering can affect much more than speech. It may influence confidence, relationships, school, work, and everyday communication. Here are some of the ways stuttering can impact daily life:
Avoidance of social interactions: Avoiding public speaking or situations where communication is required.
Workplace communication difficulties: Challenges in communicating with colleagues and clients, which may impact career growth.
Academic challenges: Difficulties in class or during oral presentations, affecting academic performance.
Personal struggles: Misunderstandings and frustration in everyday conversations.
Advocacy and support: Struggling to advocate for needs or seek support.
Routine tasks: Challenges with tasks such as speaking on the phone, ordering food, or asking for directions.
These challenges can lead to stress, frustration, and reduced confidence.
Many people also notice that they stutter more during stressful situations such as speaking in class, interviewing for a job, or meeting new people. If that sounds familiar, you may enjoy reading Why Do I Stutter More When I'm Nervous?
Learn more about my Stuttering Therapy for Children, Teens, and Adults page to see how therapy helps build confidence, reduce communication breakdowns, and develop practical speaking strategies.
Challenges Reported by People with a Stuttering Diagnosis
Difficulty getting words out.
Being interrupted by others.
Feeling isolated from peers who do not stutter.
Reluctance to speak in school, at work, and in social situations.
The Speech-Language Pathologist's Assessment of Stuttering
Childhood-onset fluency disorder (developmental stuttering) is diagnosed by a speech-language pathologist (SLP) through a comprehensive evaluation. Here's what you can expect during a stuttering evaluation:
Gathering Information
Case History: The SLP asks when the stuttering began, how it has changed over time, and which speaking situations are most challenging. This information helps guide the evaluation and treatment recommendations.
Family History: A family history of stuttering or other speech disorders can provide insights and help assess the likelihood of persistence. Knowing about relatives with similar issues can aid in understanding genetic or hereditary factors.
Medical History: Medical history helps determine whether neurological or other medical conditions could be contributing to the speech difficulties is crucial to rule out other contributing factors and ensure the fluency disorder is not a symptom of another underlying condition.
Assessing Your Speech
Speech Sample Collection: The SLP gathers speech samples to analyze fluency issues. These might include spontaneous speech, oral reading, or phone calls. The goal is to capture a variety of speaking contexts for a comprehensive view of speech patterns and fluency. Because stuttering varies from situation to situation, speech samples are collected in several speaking tasks whenever possible.
Formal Assessment: Using standardized tools and tasks, the SLP evaluates speech fluency. This includes tasks like reading aloud, conversational speech, and spontaneous speech samples. Standardized assessments provide a baseline for measuring the severity and frequency of stuttering. Learn more about what to expect during stuttering therapy after the evaluation.
Speech Analysis: The SLP analyzes speech patterns to determine the frequency, duration, and severity of stuttering events. They also assess secondary behaviors, such as facial grimaces or head movements, and emotional reactions to stuttering.
Assessing Beyond Speech
Attitude Rating Scale: This step involves understanding how the individual feels about speaking about the Individual's self-perception, attitudes, and feelings about communication, as well as their emotions regarding stuttering. Understanding these aspects helps tailor therapy to the client's needs.
Setting Specific Goals: The client and the SLP work together to set personal stuttering treatment goals, such as reducing disfluencies, improving communication confidence, or managing specific speaking situations.
This comprehensive evaluation process allows the SLP to accurately diagnose childhood fluency disorders and develop a tailored treatment plan to address each client’s unique needs.
Strategies to Improve Speech for Individuals Who Stutter
Reducing Your Speaking Rate and Using Natural Pauses
Slow down your speech and insert pauses between phrases, after sentences, and wherever it feels natural.
Speaking quickly can make it more difficult to manage stuttering. Pausing gives your speech muscles time to prepare for the next phrase and may help speech feel easier and more controlled.
Starting Speech at a Lower Volume
Start speaking at a lower volume and gradually increase it.
Beginning at a lower volume may reduce tension on the vocal folds and help make starting speech feel easier for some individuals.
These are just a few of the many strategies that may be used during therapy. Learn more about my approach to stuttering therapy for children, teens, and adults.
When Should You Seek a Speech Evaluation?
You may want to schedule an evaluation if:
Speech is difficult for unfamiliar listeners to understand.
Teachers or family members frequently comment on speech.
Communication is causing frustration.
Speaking situations are being avoided.
You're unsure whether the speech pattern is cluttering, stuttering, or something else.
An evaluation looks beyond speech fluency alone to determine what's contributing to the communication difficulty and whether speech therapy would be beneficial.
What Happens During Speech Therapy for Stuttering
Following a comprehensive stuttering evaluation, you and your speech-language pathologist will develop individualized goals based on your communication needs. Therapy often targets both communication confidence and speaking situations that are most important to you. A combination of fluency shaping and stuttering modification techniques may be used throughout therapy.
Fluency Shaping Techniques
Fluency shaping techniques are designed to make speaking feel smoother and more comfortable. These strategies include:
Slowing Down Speech: Encouraging a slower rate of speech and incorporating pauses to reduce stuttering.
Easy Onset: Starting speech gently with a soft onset of voice to prevent blocks and prolongations.
Continuous Phonation: Maintaining continuous vocal cord vibration to minimize disfluencies.
Stuttering Modification Techniques
Stuttering modification techniques help individuals manage moments of stuttering with less tension and struggle. These strategies include:
Voluntary Stuttering: Practicing stuttering on purpose to reduce fear and anxiety associated with stuttering.
Cancellations: Pausing after a stuttered word and then repeating it more fluently.
Pull-Outs: Learning to ease out of a stuttering moment smoothly.
Addressing Emotional Aspects
Therapy also addresses the thoughts and emotions that often accompany stuttering. Techniques such as Cognitive Behavioral Therapy (CBT) may be used to tackle negative thoughts and feelings surrounding stuttering. Desensitization strategies can help manage avoidant behaviors often associated with stuttering.
Practical Application
You will have opportunities to practice these strategies in real-life scenarios, such as making phone calls (e.g., ordering food). Additionally, homework assignments may be given to encourage the use of these techniques outside of therapy sessions when you feel comfortable.
If you're considering therapy, visit my Stuttering Therapy for Children, Teens, and Adults page to learn what to expect during therapy, how sessions are individualized, and how treatment differs for children, teens, and adults.
Family and Support Involvement
Speech therapists often involve parents or loved ones in the therapy process to educate them about stuttering. They may also help you connect with support groups where you can meet others in similar situations and share coping strategies.
This comprehensive approach ensures that therapy not only improves fluency but also builds confidence and reduces the impact of stuttering on daily life.
What is Cluttering?
Unlike stuttering, many people who clutter are not fully aware that their speech is difficult for listeners to understand. Just as no two people who stutter are exactly alike, no two people who clutter have the same communication profile. Cluttering can present differently from person to person.
Cluttering is a fluency disorder that can affect speech rate, language organization, and overall speech clarity. Common characteristics include:
Disorganized Language: Difficulty organizing thoughts and expressing them coherently.
Fast Speaking Rate: Speaking too quickly, though a fast speaking rate alone does not qualify someone as a clutterer.
Jerky or Irregular Rate: Awkward pauses in unnatural places or no pauses at all, unlike typical speakers who pause at the end of sentences or phrases.
Excessive Typical Disfluencies: Examples include incomplete words, revisions, filler words (such as interjections), and repetitions of phrases or words.
Collapsing Sounds/Syllables or Whole Words: Speech may sound mumbled, with words running together as if produced too quickly, leading to dropped sounds.
Atypical Pauses, Stress Patterns, and Speech Rhythm: Abnormal speech patterns such as difficulty with volume control, word or syllable stress, and intonation. Challenges in managing breath and speech simultaneously can also be present.
Disorganized Language Use: Difficulty organizing thoughts, monitoring speech, and recognizing when communication breaks down.
If you're concerned that your child may be stuttering rather than cluttering, learn more about my Stuttering Therapy for Children, Teens, and Adults page and what treatment may look like.
Causes of Cluttering
Possible causes of cluttering include:
Difficulty with Language Processing and Self-Regulation: Some individuals who clutter have difficulty organizing, monitoring, and regulating their speech as they talk.
Inhibition Problems in the Basal Ganglia: Differences in executive functioning, including self-monitoring and self-regulation, may contribute to cluttering in some individuals.
Co-occurring Diagnosis: Cluttering may occur alongside other developmental or neurological conditions, although it can also occur on its own.
Because cluttering can occur alongside other communication disorders, a comprehensive speech evaluation is important for making an accurate diagnosis.
How Common is Cluttering?
Approximately 1.1%–2.1% of school-age children clutter.
Cluttering is more common in males than females, with an estimated male-to-female ratio of approximately 4:1.
Research suggests that at least one-third of children and adults who stutter also demonstrate characteristics of cluttering.
Cluttering is more common when co-occurring with stuttering.
Cluttering is also more likely to occur alongside other conditions that affect attention, language, or executive functioning.
Co-Occurring Disorders of Cluttering
Cluttering may occur alongside other communication, developmental, or neurological conditions. These conditions do not cause cluttering, but they are commonly seen together.
Stuttering: A speech disorder where a person has disruptions in the flow of speech, such as repeated sounds, syllables, or words.
Articulation Disorders: A type of speech sound disorder that impacts speech production and can reduce speech clarity.
Attention Deficit Hyperactivity Disorder (ADHD) or Attention Deficit Disorder (ADD): A disorder where a person has trouble focusing and paying attention.
Learning Disabilities: Issues such as a language disorder that make it hard for a person to read, write, or do math.
Central Auditory Processing Disorders: Difficulty understanding and processing sounds and spoken language.
Autism Spectrum Disorder (ASD) : A form of autism where a person has difficulty with social interactions and may have focused interests and repetitive behaviors.
Apraxia: A motor speech disorder where a person has difficulty planning and coordinating the movements needed for speech.
Dysarthria: A speech disorder caused by muscle weakness, making it hard to speak clearly.
How Cluttering Can Impact Daily Life
Communication Challenges: Difficulty expressing oneself clearly can lead to frustration in conversations.
Relationships: Misunderstandings may strain relationships with family, friends, and colleagues.
Educational and Professional Settings: Cluttering can affect academic and workplace communication, including classroom participation, presentations, job interviews, and everyday conversations.
Self-esteem: Persistent speech difficulties may reduce self-confidence and impact overall quality of life.
Despite these challenges, many people who clutter develop strategies to cope, such as avoiding certain speaking situations, changing how they speak, or seeking support from a speech-language pathologist. If cluttering is affecting everyday communication, learn more about my Stuttering Therapy for Children, Teens, and Adults page to better understand how fluency therapy is individualized.
Challenges Reported by People with a Cluttering Diagnosis
Challenges for people with a cluttering diagnosis vary, but here are common ones:
Racing Thoughts: Struggling with a rapid flow of ideas that can be difficult to manage.
Difficulty Organizing Thoughts or Getting to the Point: Trouble organizing thoughts clearly and expressing them concisely.
Words Sounding Like They Are Running Together: Speech may sound rushed and unclear.
Frequent Starts and Stops: Speech may include frequent pauses, revisions, or restarts that make communication more difficult to follow.
Excessive Use of Interjections: Frequent use of filler words such as "um" or "like" that may interrupt the flow of speech.
Limited Awareness of How Speech Sounds to Others: Difficulty perceiving how their speech is received by listeners.
Difficulty Slowing Down When Requested: Challenges in moderating their speaking pace, even when asked to do so.
Tendency to Interrupt Conversational Partners: Interrupting others, often without realizing it.
Words or Ideas Coming Out Differently Than Intended: Thoughts may come out differently than intended because speech is produced faster than ideas can be organized.
Managing Fluency Disorders: Strategies to Improve Speech for Individuals with Cluttering Disorders
Speech therapy for cluttering often focuses on strategies such as:
Reducing Speech Rate: Incorporate pauses in natural places and speak at a slower pace.
Over-Articulation: Exaggerate each sound during connected speech, which may be especially helpful for individuals who collapse syllables or words together.
Developing Awareness: Recognize cluttering episodes and apply strategies in real time.
The Speech-Language Pathologist's Assessment of Cluttering
A comprehensive cluttering evaluation looks at more than speech rate alone. Because cluttering often occurs alongside other communication disorders, the assessment examines multiple areas of communication. Some individuals who clutter may exhibit slowed speech during evaluations due to awareness of being assessed, particularly in structured situations. We conduct assessments over extended periods to prevent misdiagnosis or overlooking potential diagnoses.
If you're unsure whether the speech difficulty is cluttering, stuttering, or another fluency disorder, a comprehensive speech evaluation can help determine the most appropriate diagnosis and treatment plan.
Gathering Relevant Information
Questionnaire: We may ask you to fill out an intake form to describe your or your child's speech, including when the difficulty was first noticed, how speech has changed over time, self-awareness of the challenges, how communication breakdowns are handled during conversation, and what situations are more or less challenging.
Case History: We collect pertinent information regarding the purpose of your evaluation, including developmental history, onset of symptoms, and prior treatment experiences.
Family History: We inquire about any family history of speech or language disorders, including fluency disorders.
Medical History: We explore medical or neurological conditions to identify potential contributing factors.
History of Learning and Behavioral Problems: Given the potential coexistence of cluttering with disorders such as ADHD, learning disabilities, and auditory processing disorders, we assess any history of learning and behavioral difficulties in school or work settings.
Obtain Subjective Rate of Speech: We may ask family members or close friends for their perception of the client's rate of speech, as our perception during the evaluation may not reflect their usual speech patterns.
Evaluation of Speech
Variety of Speaking Situations: We may prompt clients to speak in diverse situations, including spontaneous speech, conversation, narrative, and expository discourse. In some cases, involving additional conversational partners may alter the frequency of speech breakdowns. We assess various components during these speaking situations, including organization, stress patterns, rhythm, disfluencies, rate of speech, and articulation.
Oral Reading: Clients may be asked to read aloud during assessments.
Assessment of Articulation/Language: Articulation and/or language screeners or assessments may be administered to determine the presence of an articulation or language delay or disorder.
Evaluation of Writing
Samples of written work from school assignments may be collected, or prompts may be provided during the evaluation process. Oftentimes, those who clutter tend to write how they speak. They may also have difficulty writing; in which case, they may need to be referred to an occupational therapist.
Self-Awareness
What Happens During Speech Therapy for Cluttering Disorders
Following the evaluation, you and your speech-language pathologist will work together to develop individualized therapy goals based on your communication needs. Therapy may include:
Implementing Speech Techniques to Improve Speech Fluency
Reducing Speech Rate: You will practice speaking more slowly by incorporating natural pauses and pacing your speech.
Over-Articulation: You may use techniques to exaggerate each sound in connected speech, which can help improve clarity and reduce words and syllables from running together.
Exaggerating Sounds: Practicing exaggerated pronunciation can aid in making your speech more understandable.
Improving Awareness:
Recognizing Cluttering Episodes: You will work on becoming more aware of when cluttering occurs and apply strategies to manage it in real time.
Organizing Your Thoughts:
Pre-Speaking Preparation: You’ll learn to organize your thoughts and plan your speech before engaging in specific speaking situations.
Using Visual Aids: Tools like graphic organizers may be used to help structure your thoughts and improve speech coherence.
Managing Disfluencies:
Handling Interruptions: You’ll work on strategies to reduce frequent starts and stops in your speech.
Minimizing Filler Words: Techniques to reduce the use of filler words and interjections will be practiced to improve the flow of your speech.
Involving Family Support:
Family Involvement: Family members may be included to provide additional support and practice at home, reinforcing the techniques learned during therapy.
Throughout therapy, your speech-language pathologist will regularly monitor your progress and adjust treatment goals as your communication skills improve to ensure effective improvement in managing cluttering.
If you'd like to learn more about how I individualize therapy for children, teens, and adults, visit my Stuttering Therapy for Children, Teens, and Adults page.
Stuttering vs. Cluttering : The Difference Between Stuttering and Cluttering
Stuttering | Cluttering |
Language planning is typically more complete. | Language planning is often incomplete |
Struggle or tension is evident when producing the intended message. | Rapid speech that is often disorganized, with minimal tension. |
Disfluencies may increase with focus on speech due to heightened emotional response. | Disfluencies often decrease when focus and awareness shift to their own speech (this is because they may organize their speech better, thus decreasing disfluencies) |
Speaking situations are more likely to trigger emotional or behavioral reactions. | Speaking situations are less likely to trigger fear or avoidance. |
Disfluencies include part-word repetitions, blocks, sound prolongations, whole-word repetitions with tension | Disfluencies include interjections, phrase repetitions, revisions, and whole-word repetitions without tension |
Struggle or tension is evident when producing the intended message. | Minimal to no tension, linguistic issues present, no secondary behaviors present |
Although stuttering and cluttering are both fluency disorders, an accurate diagnosis is important because treatment approaches may differ. To learn more about how I evaluate and treat fluency disorders, visit my Stuttering Therapy for Children, Teens, and Adults page.
Can Someone Have Both Cluttering and Stuttering?
Yes. Some individuals exhibit characteristics of both cluttering and stuttering. In fact, research suggests that cluttering co-occurs with stuttering more often than many people realize. Because the two disorders can overlap, a comprehensive speech-language evaluation is important to determine which speech patterns are present and develop an individualized treatment plan. Although both are fluency disorders, the treatment approach may differ depending on whether someone primarily stutters, clutters, or demonstrates characteristics of both.
Frequently Asked Questions
Where Can I Learn More About Stuttering and Cluttering?
The International Cluttering Association is an excellent resources for those that clutter. The Stuttering Foundation website is a great resource for those that stutter. They also have a cluttering brochure. There are also virtual support groups for kids, teens, and adults here.
Does My Child Need Additional Speech Therapy if They Already Receive It From the Public School System?
Some children make excellent progress with school-based speech therapy alone, while others benefit from additional private therapy to receive more individualized treatment and practice. The right recommendation depends on your child's specific needs and communication goals.
How Long Will Speech Therapy Take?
The length of therapy varies from person to person. It depends on factors such as your goals, the type and severity of the fluency disorder, how often therapy occurs, and opportunities to practice strategies outside of sessions.
Wondering Whether It's Cluttering, Stuttering, or Something Else?
If you're concerned about your own speech or your child's communication, you don't have to figure it out alone.
A comprehensive speech evaluation can determine whether the speech difficulty is cluttering, stuttering, or another communication disorder and help identify the most appropriate treatment plan.
At Speak with Stephanie, I provide individualized speech therapy for children, teens, and adults with fluency disorders throughout Chicago's North Shore, as well as online throughout Illinois and New York.
Learn more about my Stuttering Therapy for Children, Teens, and Adults page or contact me to schedule a consultation.
About the author:
Stephanie Jeret, M.S., CCC-SLP, is a speech-language pathologist and owner of Speak with Stephanie, a private speech therapy practice serving children, teens, and adults in Skokie and Chicago's North Shore.
With more than 10 years of experience, Stephanie provides individualized therapy for speech sound disorders, language disorders, stuttering, and other communication challenges. She offers in-home, school-based, and online speech therapy, with a focus on helping clients build practical communication skills they can use in everyday life.
Wondering if speech therapy may be a good fit for you or your child?
Schedule a free consultation with Stephanie to discuss your concerns and learn more about therapy options.
