ConditionMental health & sleep
Selective Mutism
Selective mutism is an anxiety disorder in which a child who speaks normally in comfortable settings, usually at home, consistently cannot speak in other situations, such as at school or with unfamiliar adults. It is not shyness or defiance: the child wants to speak but freezes. It typically begins between ages 2 and 5 and is often noticed when school starts. Behavioral therapy that gradually builds speaking confidence is very effective, especially when started early.
Also called: Elective mutism (older term), situational mutism
At a glance
- What it is
- Consistent failure to speak in specific social settings despite speaking normally elsewhere.
- Onset
- Usually ages 2 to 5, often noticed at school entry.
- How common
- Roughly 1 in 140 young children, slightly more often girls.
- Cause
- Mainly severe social anxiety, with temperament, genetics and sometimes speech or language difficulties.
- Treatment
- Behavioral therapy (stimulus fading, shaping), CBT, school support, sometimes SSRIs.
When to get help
Call 911 or go to the ER
- A child or teen with thoughts of self-harm: call or text 988 (US)
See a doctor within a day or two
- A child who stops speaking suddenly after a frightening event or loses previously acquired speech everywhere
- Refusal to eat, drink or use the toilet at school because of anxiety
Book a routine appointment
- A child who talks at home but has not spoken at school or daycare for more than a month (excluding the first month of school)
- Severe distress, freezing or avoiding eye contact in social situations
- Speech or language delays, or hearing concerns
Usually safe to manage at home
- Supporting a child at home: reduce pressure to speak, praise any communication, and model calm, brave behavior
Signs of selective mutism
- speaks freely and often loudly at home with close family
- does not speak at school, in shops or with relatives or adults outside the family
- may freeze, look away, have a blank expression or stiff posture when expected to speak
- may communicate with gestures, nodding, pointing or writing
- may whisper to a few people in certain settings
- may avoid using the school bathroom or eating in front of others
- may be very sensitive to noise, crowds or touch
- often shows other anxiety signs, such as clinginess, worries or tantrums at home after school
The DSM-5-TR requires that the pattern lasts at least 1 month (not just the first month of school), interferes with school or social life, and is not explained by a language problem, unfamiliarity with the language spoken, or another condition.
Selective mutism vs shyness
| Shyness | Selective mutism | |
|---|---|---|
| Speech | Quiet at first, then warms up | Consistently unable to speak in certain settings, often for months or years |
| Duration | Brief | Persistent |
| Effect | Little impact | Interferes with learning, friendships and participation |
| Feeling | Mild nervousness | Intense anxiety, freezing |
Causes and risk factors
- anxiety: most children with selective mutism also meet criteria for social anxiety disorder
- temperament: behavioral inhibition, a tendency to be cautious in new situations from infancy
- family history of anxiety or shyness
- speech, language or hearing difficulties, present in some children, which can increase self-consciousness
- bilingual or immigrant families, where adjusting to a new language can trigger or mask the condition
- sensory sensitivities
Selective mutism is not caused by trauma in most children, and it is not a sign of abuse or willful refusal.
Related conditions
- social anxiety disorder and separation anxiety disorder
- speech delay and language disorders
- autism spectrum disorder, which needs to be distinguished: autistic children often have communication differences in all settings, not just some
- obsessive-compulsive disorder and other anxiety disorders
Diagnosis
A mental health professional, often a child psychologist or psychiatrist, diagnoses selective mutism through:
- parent interviews and questionnaires, such as the Selective Mutism Questionnaire
- teacher reports
- observation, sometimes using video or audio recordings from home
- speech and language assessment and hearing tests
- screening for other anxiety disorders and autism
Treatment
Behavioral therapy
The most effective approach gradually builds speaking in small steps:
- stimulus fading: a child speaks to a parent in a comfortable setting, then a new person is slowly introduced
- shaping: rewarding small steps, from nodding to sounds to whispering to words
- exposure: practicing speaking in increasingly challenging situations
- positive reinforcement: praising effort, not pressuring
Cognitive behavioral therapy
For older children and teens, CBT helps identify and challenge anxious thoughts and build coping skills.
Intensive programs
Short, intensive group programs or camps can rapidly increase speaking in school-like settings.
Medicine
For children who do not improve with therapy or have severe anxiety, a child psychiatrist may prescribe an SSRI such as fluoxetine alongside therapy.
At school
- a school plan (504 plan or IEP) with accommodations
- allowing nonverbal participation at first, then gradually increasing speaking goals
- a trusted staff member who works with the child
- avoiding pressure, bribes or punishment for not speaking
What parents can do
- do not force speech or answer for the child every time
- give the child time and praise any brave communication
- arrange play dates at home with one classmate
- avoid labeling the child as shy or mute in front of them
Outlook
With early, appropriate treatment, most children make substantial progress and many recover completely. Without treatment, selective mutism can persist and is linked to social anxiety and academic difficulties later. Starting therapy soon after the problem is recognized gives the best results.
Frequently asked questions
What is selective mutism?
Selective mutism is an anxiety disorder in which a child consistently cannot speak in certain settings, such as school, while speaking normally in others, usually at home. The child wants to speak but feels frozen by anxiety.
What causes selective mutism?
It is mainly driven by severe anxiety, particularly social anxiety, combined with a naturally cautious temperament and family history of anxiety. Speech or language difficulties and adjusting to a new language can contribute. It is not usually caused by trauma.
Is selective mutism the same as shyness?
No. Shy children may be quiet at first but warm up. Children with selective mutism consistently cannot speak in specific settings for months or longer, and it interferes with learning and friendships. They often freeze rather than simply being quiet.
How is selective mutism treated?
Behavioral therapy using gradual steps, such as stimulus fading and positive reinforcement, is the most effective treatment. Cognitive behavioral therapy helps older children. School accommodations and parent involvement are important, and medicine may be added for severe anxiety.
Can children outgrow selective mutism?
Some children improve over time, but many do not without treatment, and untreated selective mutism can lead to ongoing social anxiety. Early treatment greatly increases the chance of full recovery, so it is best not to wait.
Sources
This guide was written from current patient and clinical guidance, including:
- American Psychiatric Association: DSM-5-TR selective mutism criteria
- American Speech-Language-Hearing Association: Selective mutism
- Child Mind Institute: Selective mutism basics
- Selective Mutism Association: Information for parents
- NHS: Selective mutism