Alexis Irazoque, M.S., CCC-SLP
Neurogenic stuttering and psychogenic stuttering are two types of acquired stuttering that can develop suddenly in teens or adults. While many people associate stuttering with childhood, adult-onset stuttering can occur after events such as a stroke, head injury, neurological condition, or emotional trauma. It’s important to identify the cause, since treatment differs depending on whether the stuttering is related to neurological changes or psychological factors.
Key takeaways
Neurogenic stuttering and psychogenic stuttering are forms of acquired stuttering that typically begin after childhood, often appearing suddenly in teens or adults.
Neurogenic stuttering is associated with neurological changes such as stroke, traumatic brain injury, Parkinson’s disease, multiple sclerosis, or certain medications.
Psychogenic stuttering is linked to psychological or emotional factors. It may develop after trauma, major stress, or mental health challenges.
Because the symptoms can look similar, an evaluation by a speech-language pathologist is important to identify the cause and guide treatment.
Speech therapy can help improve communication and confidence. Treatment often works best when combined with medical or mental health support when appropriate.
Support for people who stutter
Speech therapy can build your confidence and help you speak more freely. Find the right speech therapist for the support you need.
Get startedWhat is neurogenic stuttering?
Stuttering can be developmental or acquired. Developmental stuttering starts in early childhood and is linked to genetics. Acquired stuttering occurs later in life after an event such as a brain injury, stroke, or psychological trauma.
Neurogenic stuttering is a type of acquired stuttering that happens after changes or damage to the brain or spinal cord. It often appears suddenly in adulthood, and it can affect people who have never stuttered before.
People with neurogenic stuttering may have speech disruptions. They may repeat sounds or words, prolong sounds, or have blocks (when speech seems "stuck"). They may also pause unexpectedly or have a hard time speaking “smoothly.” These disruptions can occur anywhere in a word or sentence.
Neurogenic stuttering is most often linked to conditions that affect the brain. Examples include a stroke, traumatic brain injury, Parkinson's disease, multiple sclerosis, or certain medications.
What causes neurogenic stuttering?
Neurogenic stuttering occurs when a condition or injury affects the brain networks that control speech, language, and motor control. “Fluent, or smooth, speech requires many parts of the brain to work together. So any disruption to these systems can make speaking more difficult,” explains Expressable speech-language pathologist Abby Barnes, M.S., CCC-SLP.
Stroke
Stroke is one of the most common causes of neurogenic stuttering. When blood flow to the brain is interrupted, it can affect areas involved in speech and language. Some people develop stuttering after a stroke, often alongside other communication challenges such as aphasia or dysarthria.
People with aphasia may be able to talk, but different types of aphasia affect different aspects of communication. Here’s how someone with aphasia may sound.
Traumatic brain injury (TBI)
A traumatic brain injury, or head injury, can disrupt the pathways that support smooth speech. Stuttering may appear suddenly after the injury or develop during recovery as the brain heals.
Parkinson's disease and other neurological conditions
Several neurological conditions can affect speech fluency over time. These include Parkinson's disease, multiple sclerosis, dementia, brain tumors, and other disorders that change how the brain functions. As these conditions affect the brain, stuttering may start or get worse.
Medication side effects
In some cases, acquired stuttering can be a side effect of medication. Certain medications that affect the central nervous system have been linked to speech changes. If you notice new stuttering, talk with your healthcare provider before making any changes to your medicine.
What is psychogenic stuttering?
Psychogenic stuttering is a type of acquired stuttering that is linked with psychological or emotional factors, rather than damage to the brain or nervous system. It often appears suddenly after a stressful, traumatic, or emotionally challenging experience.
People with psychogenic stuttering may experience repetitions, prolongations, blocks, and other disruptions in speech. Symptoms can change from one situation to another. Stuttering may become more noticeable during times of stress or emotional distress.
“It's important to know that psychogenic stuttering is a real communication disorder,” emphasizes Barnes. “The symptoms are not intentional or 'all in someone's head.’”
Just like other forms of stuttering, psychogenic stuttering can affect daily communication and quality of life.
What causes psychogenic stuttering?
The exact cause of psychogenic stuttering isn't fully understood. However, it is often associated with emotional stress, trauma, or mental health challenges that affect how the brain processes communication.
Emotional trauma
A major emotional event can sometimes trigger psychogenic stuttering. Examples include grief, witnessing a traumatic event, being in an accident, or going through a major life change. Stuttering often starts suddenly after the event.
Functional neurological symptoms
In some cases, psychogenic stuttering may be related to functional neurological symptom disorder (sometimes called conversion disorder). This condition occurs when psychological distress shows up as physical symptoms, such as movement, sensory, or communication changes.
Mental health conditions
Anxiety, depression, post-traumatic stress disorder (PTSD), and other mental health conditions may lead to psychogenic stuttering in some people. While these conditions do not always cause stuttering, they can play a role in the symptoms.
It's important to remember that having a stutter does not automatically mean someone has a mental health condition. Many factors can influence the smoothness of your speech.
Neurogenic vs. psychogenic vs. developmental stuttering: What’s the difference?
Developmental stuttering begins in early childhood and is the most common type of stuttering. “While all three types of stuttering affect the flow of speech, they have different causes and often require different treatment approaches,” says Barnes. Below are the main differences between neurogenic, psychogenic, and developmental stuttering.
Although these types of stuttering have different causes, their symptoms can sometimes look similar. For example, adults with developmental stuttering may have worse symptoms after an illness or injury, which can make diagnosis more complicated. That’s why a professional evaluation is so important!
How are neurogenic and psychogenic stuttering diagnosed?
If you start stuttering suddenly, a thorough evaluation can help identify the cause. Diagnosis focuses on understanding when the stuttering started, what may have triggered it, and whether any medical, neurological, or emotional factors are involved.
A speech-language pathologist (SLP), also known as a speech therapist, plays a key role in diagnosing stuttering. They will evaluate your speech and communication skills, review your medical history, and ask questions about when your symptoms began.
The speech evaluation may include:
A review of your medical and communication history
A speech and language assessment
Discussion of recent injuries, illnesses, medications, or stressful life events
Evaluation for other communication disorders, such as aphasia, dysarthria, or apraxia of speech
Because acquired stuttering can have different causes, speech therapists often work closely with other professionals, including:
Neurologists
Primary care doctors
Psychologists
Other mental health professionals
Other testing, such as brain imaging, may be recommended when a neurological cause is suspected.
Discover your options for speech therapy, including school vs. private and online vs. in-person. Plus, tips to find a speech therapist.
Treatment for neurogenic and psychogenic stuttering
Treatment for acquired stuttering depends on what's causing the speech changes. For many people, speech therapy for stuttering can improve communication, increase confidence, and make everyday conversations easier.
Speech therapy for neurogenic stuttering
There is no “one-size-fits-all” treatment for neurogenic stuttering. Speech therapy is tailored to each person's needs and underlying condition.
A speech therapist may use stuttering strategies such as:
Slowing speech rate
Using gentle speech onsets
Practicing smooth, connected speech
Improving breath support for speaking
Identifying and reducing moments of stuttering
If other communication difficulties are present, such as aphasia, dysarthria, or cognitive changes, treatment may address those areas as well.
Learn how fluency shaping techniques and stuttering modification strategies work and how they’re used in stuttering therapy.
Speech therapy for psychogenic stuttering
Treatment for psychogenic stuttering usually combines speech therapy with emotional support. A speech therapist may help by teaching:
Relaxation and breathing strategies
Communication confidence skills
Ways to reduce tension while speaking
“Because emotional stress can play a role, speech therapy often works best when it’s coordinated with mental health support,” adds Barnes.
Treating the underlying cause of stuttering
Addressing the underlying cause is also an important part of treatment. Depending on the situation, this may include:
Stroke rehabilitation
Neurological care for conditions such as Parkinson's disease or multiple sclerosis
Mental health counseling or therapy
Medication review with a healthcare provider
Many people see improvements when speech therapy is combined with treatment for the condition contributing to the stuttering.
Stuttering can't be "cured" in the traditional sense, but speech therapy helps control it. Here's what to expect from stuttering therapy.
When should you seek help for sudden stuttering?
Any sudden change in speech should be evaluated by a healthcare professional.
If stuttering begins unexpectedly, it's important to talk with your doctor and schedule an evaluation with a speech-language pathologist. Sudden stuttering can sometimes be linked to neurological conditions, emotional stress, or medication side effects.
Seek medical attention right away if sudden stuttering occurs along with symptoms such as:
Face drooping
Arm weakness
Balance problems
Dizziness
Vision changes
Confusion or difficulty understanding language
These can be signs of a stroke and require emergency care.
Even when the cause isn't an emergency, early evaluation can help identify what's happening and determine the right treatment. The earlier treatment begins, the sooner you can learn ways to help your communication.
After sudden stuttering took over her life, Ada looked to online speech therapy to help her communicate with confidence.
Online stuttering therapy with Expressable
If you or a loved one has developed sudden stuttering, you're not alone. Expressable's licensed speech therapists can evaluate acquired stuttering and help people communicate more clearly.
During therapy, your speech therapist will learn about your speech, medical history, and personal goals. Together, you'll create a treatment plan tailored to your unique needs.
Stuttering therapy may focus on:
Improving speech fluency
Reducing tension while speaking
Building communication confidence
Addressing avoidance behaviors
Supporting participation in work, school, and everyday conversations
We believe that everyone deserves to feel heard. Get matched with a licensed speech therapist today to schedule an evaluation and take the next step toward confident communication!
Frequently asked questions (FAQs)
Neurogenic stuttering often includes repetitions of sounds, syllables, or words. The person also might prolong sounds or have blocks, when their speech gets “stuck.” These disruptions can occur anywhere within a word or sentence.
Sudden stuttering, also called adult-onset stuttering or acquired stuttering, can have several causes. Neurological changes, emotional trauma, certain medications, and medical conditions may all contribute. Because sudden changes in speech can sometimes signal a serious medical condition, it's important to talk with your doctor.
Acquired stuttering can result from a variety of neurological and psychological factors. Common causes include stroke, traumatic brain injury, Parkinson's disease, multiple sclerosis, brain tumors, emotional trauma, functional neurological symptom disorder, and certain medications. Determining the cause helps guide the right treatment.
Yes. Stuttering after a head injury can occur when a traumatic brain injury (TBI) affects the brain networks that control speech, language, and motor control. Symptoms vary from person to person and may occur alongside other communication challenges such as aphasia or dysarthria.
Not necessarily. Some people see major improvement in stuttering after a stroke, especially when they receive speech therapy and rehabilitation services. Recovery depends on factors such as the location and severity of the stroke, the person’s overall health, and their access to treatment.
Many people with psychogenic stuttering improve with the right treatment. Speech therapy can help address speech disruptions and build communication confidence. Mental health support may help address contributing emotional factors. Recovery varies depending on the underlying cause, symptom severity, and individual circumstances.
Adult-onset stuttering is typically diagnosed through an evaluation by a speech-language pathologist. The evaluation may include a review of medical history, speech and language testing, and discussions about recent injuries, illnesses, medications, or stressful life events. Other medical tests may be recommended when a neurological cause is suspected.
How Expressable Can Help
Concerned your child isn't reaching age-expected milestones? Looking for communication support from a professional? Expressable is a national online speech and occupational therapy practice serving children and adults. We treat all major areas of communication, feeding, and developmental skills, offer flexible hours including evenings and weekends, and accept most major health insurance plans. We’re proud to have earned more than 4,500 5-star reviews from our clients (4.83/5 average).
Our therapy model is centered on parent and caregiver involvement. Research proves that empowering caregivers to participate in their loved one’s therapy leads to better outcomes. That’s why we combine live, 1-on-1 speech and occupational therapy with personalized education and home practice activities for faster progress.
