14162 Stuttering

Overview

Stuttering (sometimes called stammering) is a speech difference where the normal flow of speaking is interrupted. You might repeat or stretch out sounds, or feel stuck on a word. It is not a sign of low intelligence or nervousness.

Yes. About 1 in 100 adults stutters, and around 5–8% of children will experience stuttering at some point.

Stuttering usually begins in early childhood, more often in boys than girls, and can run in families. It can also appear in older adults after a stroke or other brain condition.

Symptoms

Common symptoms

• Repeating sounds, syllables, or words, like “w-w-w-what”
• Stretching out sounds, like “sssssun”
• Pauses or blocks where no sound comes out
• Tension or effort in the face, jaw, or neck when speaking
• Avoiding certain words or situations that require speaking

Symptoms in children

• Frustration or embarrassment when trying to talk
• Hesitation before starting a sentence
• Symptoms that come and go, often worse when tired, excited, or stressed

Symptoms in older adults

• Stuttering that begins suddenly after a stroke or brain injury
• Difficulty finding words or forming sentences alongside the stutter
• Changes in speech that may be noticed by family members

Causes

Main causes

• Differences in the brain areas involved in speech and language
• Genetics—stuttering tends to run in families
• Difficulties with the timing and coordination of speech muscles
• In some adults, damage to the brain from a stroke or traumatic brain injury

Risk factors

• Having a family history of stuttering
• Being male
• Stuttering that starts after age 3½
• Stress or pressure to speak fluently or in front of others

When to see a doctor

See a doctor urgently if:

• If stuttering comes on suddenly with other neurological symptoms like face drooping, limb weakness, or confusion, get urgent medical care.

Book a routine appointment if:

• If stuttering is causing distress, anxiety, or problems at school or work
• If your child has been stuttering for more than 6 months or it is getting worse
• If you feel stuttering is holding you back from social or professional opportunities

Diagnosis

A doctor or speech-language therapist will ask about your symptoms and history, watch you or your child speak, and listen for repetition, stretching, or blocks in speech.

Tests that may be done

• There is no blood test or scan for stuttering.
• For adults with sudden stuttering, a doctor may recommend brain imaging or a neurological exam to rule out stroke or other conditions.

What to expect at your appointment

The assessment usually involves chatting, reading aloud, and talking about daily situations. It may take one or two visits, and the therapist will work with you to create a plan that fits your needs.

Treatment

Treatment for stuttering focuses on improving fluency, reducing tension, and building confidence. The best approach depends on age, how long the stutter has been present, and how much it affects daily life.

Self-care at home

• Speak slowly and give yourself extra time to say what you want to say
• Practice slow, relaxed breathing before and during speaking
• Let close friends and family know how they can help, such as listening patiently without interrupting
• Join a support group to connect with others who stutter and share strategies

Medical treatments

Speech and language therapy is the main treatment. It may include techniques to shape fluency, methods to reduce tension during stuttering, and cognitive behavioural therapy (CBT) to help manage any anxiety around speaking. Your speech therapist or doctor can explain which approaches might suit you and whether any tools or devices may be helpful.

Living with this condition

Many people who stutter lead successful personal and professional lives. Working with a speech therapist can help you find ways to communicate clearly and comfortably, and stuttering often becomes easier to manage over time.

Lifestyle tips

• Practice speaking in relaxed, low-pressure settings
• Set small, realistic communication goals and celebrate progress
• Try relaxation techniques such as deep breathing or mindfulness to lower stress

Diet and exercise

Eating a balanced diet and staying active can improve overall wellbeing and help you handle stress. No specific food or exercise is known to change stuttering.

Mental health and emotional wellbeing

Stuttering can sometimes lead to anxiety, embarrassment, or avoiding social situations. It is important to pay attention to your feelings. If stuttering is affecting your mood or confidence, talk to a healthcare professional. If you are in crisis or having thoughts of self-harm, contact a crisis helpline right away.

Prevention

Stuttering cannot be prevented, but early support in childhood can reduce its impact and help children develop confident speaking skills.

Complications

If left untreated

• Anxiety about speaking in social or work situations
• Lower self-esteem or self-confidence
• Avoiding activities that involve talking
• Frustration or stress during daily communication

Long-term outlook

The outlook for stuttering is positive. Many children outgrow it, and with speech therapy and support, most adults develop effective strategies to communicate clearly and confidently. Stuttering does not define ability, intelligence, or potential.

Find support

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