Selective Mutism

A consistent failure to speak in specific social situations where speaking is expected (e.g., school), despite speaking in other situations.

Etiology (Biopsychosocial Model)

Biological: Possible anomalies in auditory processing; temperamental inhibition.

Psychological: High social anxiety, fear of embarrassment, compulsive traits.

Social: Overprotective parenting, modeling of social withdrawal, immigrant background requiring new language use.

Symptoms & Diagnosis (Mnemonic: MUTE)

M - Minimal or absent speech in specific settings (despite normal speech elsewhere)

U - Unrelated to language deficit or unfamiliarity with language

T - Trouble with social, educational, or occupational functioning

E - Exceeds 1-month duration (not limited to first month of school)

Treatment

Psychotherapy: CBT with stimulus fading, shaping, and reinforcement.

Behavioral interventions: Exposure techniques and positive reinforcement.

Pharmacotherapy: SSRIs for severe anxiety.

Psychoeducation: For parents/teachers on reducing pressure and anxiety around speech.

Speech-language support: If any coexisting communication difficulties exist.

Info

DSM-5-TR Code

F94.0

Prevalence

Rare disorder. Clinic/school sample point prevalence: 0.03% to 1.9%.

More likely to manifest in early childhood.

Equal gender distribution in community samples; higher prevalence in girls in some reports.

Personal Remarks

Often misunderstood as stubbornness or defiance, selective mutism is actually rooted in intense anxiety. Children with this condition may want to speak but feel incapable due to overwhelming fear. Creating a safe and supportive environment can be pivotal in helping them find their voice.