Silence may sometimes simply reflect a person’s choice to avoid talking or may be a way of expressing shyness and a quiet personality. However, in some cases, it may be a sign of a psychological disorder that affects a person’s ability to speak and communicate in certain situations.One of these conditions is selective mutism, a disorder that commonly develops during childhood. Children with selective mutism are usually able to speak normally in environments or with people with whom they feel safe and comfortable. However, they may have difficulty speaking or may refrain from speaking in specific social situations, despite having the ability to speak.

The effects of selective mutism are not limited to communication. They may also affect a child’s academic performance, social life, and relationships with others. Therefore, understanding the nature of this disorder and knowing how to respond to it is important for parents, teachers, and everyone involved in the child’s life.In this article from Dalili Medical, we will discuss the symptoms and causes of selective mutism, ways to manage it, and the most important treatment approaches that can help children overcome this difficulty and develop more comfortable and confident communication skills.

What Is Selective Mutism?

Selective mutism is a complex anxiety disorder that most commonly develops during childhood. It affects a child’s ability to speak in certain social situations, such as at school or daycare, even though the child is able to speak normally and fluently at home or with people with whom they feel safe and comfortable.

Does Selective Mutism Mean That the Child Is Stubborn?

No. Selective mutism does not mean that the child is stubborn or deliberately refusing to speak. In many cases, the child is unable to speak in certain situations because of anxiety and fear, rather than because they intentionally refuse to communicate.

At What Age Does Selective Mutism Begin?

Selective mutism most commonly begins during early childhood, and its initial signs may appear between the ages of two and four. It may become more noticeable when the child starts daycare or school, where they encounter new social situations and greater communication demands.

Is Selective Mutism the Same as Shyness?

No. There is a difference between selective mutism and shyness. A shy child may feel hesitant or embarrassed when speaking with others, but will often gradually begin to interact after becoming familiar with the situation.

In contrast, a child with selective mutism may continue to be unable to speak in certain situations, which can affect their communication, social participation, and academic activities.

Does Selective Mutism Mean That the Child Has Autism?

Not necessarily. Selective mutism and autism are different conditions, and each has its own characteristics and symptoms. However, selective mutism may occur alongside certain developmental or psychological conditions in some children. Therefore, a professional evaluation is recommended when symptoms persist or significantly interfere with the child’s daily life.

Can a Child With Selective Mutism Speak?

Yes. Most children with selective mutism are able to speak normally and may speak fluently at home or with family members and other people they feel comfortable with.

However, they may experience significant difficulty speaking in certain social situations because of anxiety, rather than because they have lost the ability to speak.

Should a Child Be Forced to Speak?

No. Children with selective mutism should not be forced, pressured, or embarrassed because they are unable to speak in certain situations. Such pressure may increase their anxiety and fear, making communication even more difficult.

Instead, the child should be treated with patience and understanding and encouraged gradually to communicate, while being provided with a safe and supportive environment in which they feel comfortable.

Can a Child Overcome Selective Mutism?

Yes. Many children with selective mutism can improve significantly when they receive appropriate intervention at the right time. The rate of improvement varies from one child to another depending on the severity of the condition, the child’s environment, and their response to treatment.

Early recognition and professional support can help establish an appropriate treatment plan, support the child’s emotional well-being, and gradually improve their ability to communicate.

What Causes Selective Mutism?

Selective mutism does not have one specific cause. Instead, it may be associated with a combination of psychological, genetic, environmental, and language-related factors. The contributing factors vary from one child to another. Some of the most common factors include:

1. Social Anxiety

Social anxiety is one of the major factors associated with selective mutism. A child may experience intense anxiety when asked to speak in front of certain people or in a particular environment, making speaking itself a source of fear and distress.

Example: A child may speak freely with their parents and family members but have difficulty answering the teacher’s questions in class, even when they know the answer.

2. Genetic Predisposition

Some children may have a genetic predisposition that makes them more vulnerable to anxiety or extreme shyness. A family history of anxiety disorders or social anxiety may also increase a child’s susceptibility to these difficulties. However, this does not necessarily mean that the child will develop selective mutism.

3. An Inhibited or Shy Temperament

Some children are naturally more reserved or cautious when interacting with unfamiliar people or entering new environments. This may sometimes be described as a behaviorally inhibited temperament.

Children with this temperament may need more time to feel safe and comfortable before they begin speaking and interacting with others.

4. Fear of Being Judged by Others

A child may fear how others perceive or evaluate them when they speak. This may include fears such as:

• Making a mistake while speaking.

• Being laughed at or mocked by others.

• Having an unclear or inappropriate-sounding voice.

• Giving the wrong answer.

• Attracting attention in front of other people.

As this fear and anxiety increase, silence may become a way for the child to avoid situations that cause distress.

5. Negative Social Experiences

Certain negative social experiences may contribute to increased anxiety in some children, including:

• Being mocked because of the way they speak.

• Experiencing bullying.

• Feeling embarrassed in front of others.

• Repeated criticism.

• Being forced to speak in front of a group of people.

However, these experiences should not automatically be considered the direct cause of selective mutism in every case. Many children with selective mutism do not have a clearly identifiable negative experience that can be considered the cause of the condition.

6. Speech and Language Difficulties

Selective mutism may occur alongside speech or language difficulties in some children, including difficulties with pronunciation, expressive language, language comprehension, or speech fluency.

A child may become anxious about making mistakes or being unable to express their thoughts effectively, which may lead them to avoid speaking in situations that require greater use of language.

7. Speaking More Than One Language

Children growing up in multilingual environments may sometimes experience a period of hesitation or reduced speech when using a new language, particularly when entering a school environment where a different language is spoken from the one they are accustomed to using at home.

However, learning a second language does not, by itself, mean that a child has selective mutism. The condition may be more strongly suspected when the child continues to remain silent in specific social situations despite having an appropriate ability to understand and use the language.

8. The Environment and Adults’ Responses

The way adults interact with a child can influence the level of anxiety they experience. Continually pressuring a child to speak—for example, by saying, “Speak!”, “Answer the teacher!”, or “Why are you so quiet?”—or forcing them to speak in front of others may increase their anxiety.

Similarly, speaking on the child’s behalf in every situation may reduce opportunities for them to attempt communication independently.

Therefore, it is important to provide a calm and supportive environment, avoid placing the child under constant observation or pressure, and encourage communication gradually in a way that helps reduce anxiety.

9. Co-Occurring Conditions or Difficulties

Selective mutism may occur alongside certain other conditions or difficulties, such as:

• Social anxiety disorder.

• Other anxiety disorders.

• Certain communication disorders.

• Some learning or developmental difficulties.

The presence of another condition does not necessarily mean that it is the cause of selective mutism. A comprehensive assessment by qualified professionals is therefore important to understand the child’s individual needs and determine the most appropriate approach to treatment and support.

Symptoms of Selective Mutism

Selective mutism does not mean that a child is unable to speak. Children with selective mutism are generally able to speak normally in some situations, while experiencing significant difficulty speaking or remaining silent in other social situations. This is often related to anxiety and distress rather than stubbornness or an intentional refusal to communicate.

1. Not Speaking in Certain Situations

One of the most prominent symptoms of selective mutism is the inability or reluctance to speak in specific situations. A child may speak normally or almost normally in some environments while remaining silent in others.

For example, a child may talk frequently with their parents at home and interact comfortably with close family members, but may not answer the teacher’s questions at school, speak with other children at a club, or talk when unfamiliar people are present at home.

In some cases, the silence may be associated more strongly with specific people than with a particular location.

2. Being Able to Speak in an Environment Where the Child Feels Safe

A child with selective mutism can often speak normally in environments where they feel comfortable and safe. They may talk with family members, laugh, play, interact vocally, and express their needs and wishes. Some children may even talk at length with a person they trust.

This difference between the child’s ability to speak at home and their difficulty speaking in certain social situations is an important sign that should be recognized.

3. Using Gestures and Other Forms of Communication Instead of Speaking

When a child has difficulty speaking, they may rely on other ways to express their needs, such as:

• Pointing to the object they want.

• Nodding or shaking their head to indicate yes or no.

• Using hand gestures.

• Taking another person to the place or object they want.

• Writing or using a phone to communicate.

• Relying on another person to speak on their behalf.

4. Avoiding Eye Contact

A child may avoid looking at a person who is asking them to speak, look down at the floor, turn their face away, or hide their face behind a parent. They may sometimes appear to be trying to avoid drawing attention to themselves.

However, poor eye contact on its own does not necessarily indicate selective mutism. It should be considered alongside other symptoms and behaviors.

5. Freezing When Attempting to Speak

In some situations, the child may appear to want to speak but be unable to initiate speech. Signs may include opening their mouth without producing a sound, moving their lips without speaking, attempting to whisper, having a noticeably still facial expression, or being unable to answer despite knowing the answer.

These behaviors may help explain that the child is experiencing difficulty speaking because of anxiety rather than intentionally refusing to communicate.

6. Signs of Anxiety in Social Situations

A child may show clear signs of anxiety or distress when asked to speak, such as:

• Intense fear or nervousness.

• Clinging to parents.

• Facial flushing or sweating.

• Noticeable confusion or discomfort.

• Freezing or difficulty moving.

• Wanting to leave the situation.

However, not all children show obvious physical signs of anxiety. Some may appear very calm on the outside while experiencing significant anxiety internally.

7. Difficulty Answering Even Simple Questions

A child may have difficulty answering simple questions despite knowing the answer. For example, a teacher may ask the child their name or whether they would like a particular color, but the child may be unable to respond verbally.

In contrast, the same child may answer the question easily at home or when speaking with someone they feel safe with.

8. Not Speaking With Certain People

The silence may not occur with everyone. A child may speak comfortably with one person but remain silent around others. For example, the child may speak with a teacher when they are alone together but be unable to speak in front of classmates.

Therefore, the severity of symptoms may vary depending on the person, location, or number of people present.

9. Difficulty Participating at School

Selective mutism may appear in the school environment in several ways, including:

• Not answering questions in class.

• Not asking to use the restroom.

• Not asking for help when needed.

• Avoiding activities that require speaking.

• Avoiding reading aloud.

• Not speaking during group play.

• Avoiding conversations with teachers or school staff.

A child may perform well academically, but difficulty with verbal expression can sometimes make their observable performance fail to reflect their actual abilities.

10. Speaking Very Softly or Whispering

A child with selective mutism is not necessarily completely silent in every situation. They may speak very quietly or whisper, speak only to certain people, or need to move close to someone’s ear in order to communicate.

Whispering may reflect an attempt to communicate despite experiencing anxiety and distress.

11. Difficulty Initiating Conversations

A child may be able to answer questions in an environment where they feel safe but have difficulty initiating communication, such as:

• Starting a conversation.

• Asking for something they need.

• Calling someone’s attention.

• Asking a question.

• Expressing an opinion in front of others.

12. Changes in Behavior Depending on the Level of Safety and Comfort

One of the notable characteristics of selective mutism is that the severity of symptoms may vary depending on how safe and comfortable the child feels.

For example, the child may behave normally at home, talking, playing, laughing, and participating in conversations. Their speech may become more limited when interacting with a less familiar relative and may become extremely limited or absent around unfamiliar people or groups.

This gradual variation is common, although it does not appear in exactly the same way in every child.

Symptoms That Parents May Not Associate With Selective Mutism

Sometimes, parents may not immediately notice the child’s difficulty with speaking. Instead, they may observe other behaviors that can be associated with selective mutism, such as:

• Not asking a salesperson or service worker for something they need.

• Not responding to relatives or unfamiliar people.

• Not speaking during social gatherings or birthday parties.

• Avoiding talking to other children at clubs or in public places.

• Hiding behind a parent when meeting someone new.

• Relying on their mother or father to speak on their behalf.

• Not asking the teacher for help when needed.

• Avoiding activities that require speaking in front of others.

• Appearing extremely shy outside the home despite behaving very differently at home.

Diagnosis of Selective Mutism

The diagnosis of selective mutism is not based simply on the child being quiet or speaking very little. Instead, it involves evaluating the child’s communication patterns and ability to speak in different situations while ensuring that there are no other explanations for the difficulty with speaking.

Diagnostic Criteria for Selective Mutism

According to established diagnostic criteria, selective mutism may be suspected when several key features are present, including:

• The child is able to speak normally in some situations but consistently fails to speak in specific social situations where speaking is expected.

• The inability to speak interferes with educational achievement or participation, social relationships, or everyday communication.

• The pattern of failure to speak persists for at least one month. The first month of starting a new school or entering a new environment alone should not be considered sufficient evidence for diagnosis.

• The failure to speak is not caused by a lack of knowledge of, or lack of familiarity with, the language required in the situation.

• The silence is not better explained by another condition, such as autism spectrum disorder, a communication disorder, or another psychological condition.

How Is Selective Mutism Diagnosed?

Assessment is usually conducted by a child and adolescent psychiatrist, psychologist, or qualified speech and language professional. The assessment may include several steps, such as:

• Interviewing the parents to learn about the child’s developmental history and the development of their language and social skills.

• Observing the child’s behavior and communication in more than one setting, such as home and school.

• Gathering information from teachers about the child’s behavior and interactions at school.

• Assessing speech and language skills and conducting a hearing evaluation when necessary.

• Using specialized questionnaires and assessment scales to help evaluate the symptoms and severity of selective mutism.

• Ruling out other medical, developmental, or psychological conditions that may affect the child’s ability to speak and communicate.

Does the Child Deliberately Choose to Remain Silent?

It is important to emphasize that a child with selective mutism does not usually choose to remain silent intentionally. It does not mean that the child is stubborn or deliberately refuses to speak.

In some situations, the child’s anxiety may become so intense that speaking itself becomes extremely difficult.

Therefore, understanding the nature of the condition and avoiding pressure or forcing the child to speak are important aspects of supporting the child, along with seeking professional assessment when symptoms persist and affect daily life.

Treatment of Selective Mutism With Medication

Yes, medications may be used in the treatment of selective mutism in some cases. However, medication is not usually considered the only treatment.

When medication is indicated, the goal is generally to reduce the child’s level of anxiety so that they can benefit more effectively from behavioral or cognitive-behavioral therapy and gradual speech practice.

Medication may be considered more often in severe or persistent cases, when behavioral treatment has not produced sufficient improvement, or when anxiety is so significant that it prevents the child from participating effectively in therapy.

1. What Medications Are Used to Treat Selective Mutism?

Selective serotonin reuptake inhibitors (SSRIs) are among the medication classes most commonly considered for children and adolescents who require pharmacological treatment for selective mutism.

Examples include:

• Fluoxetine, commonly known by the brand name Prozac.

• Sertraline, commonly known by the brand name Zoloft.

• Fluvoxamine, commonly known by the brand name Luvox.

A doctor may consider other medications from the same class depending on the child’s condition and individual needs.

The scientific evidence regarding medication for selective mutism remains limited compared with the evidence supporting behavioral interventions. There are relatively few medication studies specifically focused on selective mutism. However, available research suggests that some children may experience improvement, particularly with medications from the SSRI class.

2. Fluoxetine

Fluoxetine is one of the medications that has been studied in children with selective mutism. Some clinical data have reported improvements in anxiety and symptoms of selective mutism in certain children.

Fluoxetine is also available in liquid form in some markets, which may be useful for children who have difficulty swallowing tablets or capsules.

Some clinical references describe starting with a low dose, such as 5–10 mg per day, and gradually increasing it according to the child’s response and tolerance. Some references report doses of up to 60 mg per day in certain circumstances.

However, these doses should not be given to a child without a prescription and monitoring by a qualified child and adolescent psychiatrist. The appropriate dose varies according to the child’s age, weight, medical condition, associated symptoms, and other medications they may be taking.

3. Sertraline

Sertraline is also an SSRI and is used in the treatment of certain anxiety disorders in children and adolescents. There are also limited studies investigating its use specifically for selective mutism.

One older study involving only five children reported improvement in some participants. However, the very small sample size means that its findings cannot be generalized to all children or used on their own to determine appropriate doses.

Sertraline is available in liquid form in some markets, which may make administration easier for children who have difficulty swallowing tablets.

4. When Might a Doctor Consider Medication?

Not every child with selective mutism requires medication. A doctor may consider pharmacological treatment when factors such as the following are present:

• Selective mutism is severe or has persisted for a long period.

• The condition has a significant impact on the child’s school performance or social relationships.

• The child has not achieved sufficient improvement after appropriate behavioral or cognitive-behavioral treatment.

• The child has social anxiety disorder, generalized anxiety disorder, or other co-occurring conditions.

• Anxiety is severe enough to make participation in behavioral therapy extremely difficult.

• Symptoms persist for a prolonged period in older children or adolescents.

Cognitive Behavioral Therapy and Supportive Treatments for Selective Mutism

Cognitive behavioral therapy (CBT) is an important therapeutic approach for selective mutism. Its main goal is to reduce anxiety associated with speaking and communication and help the child gradually develop the ability to speak in situations that trigger fear or distress.

First: Cognitive Behavioral Therapy (CBT)

CBT can be adapted to the child’s needs and applied gradually, taking into account their level of anxiety and ability to participate at each stage.

Key Techniques Used in CBT

Gradual exposure:
Moving systematically from situations in which speaking is easy and comfortable for the child toward more challenging situations, without forcing the child to move to a new stage before they are ready.

Positive reinforcement:
Encouraging and rewarding the child for attempts to communicate and speak, while avoiding pressure, criticism, or punishment for remaining silent.

Social skills training:
Practicing skills such as greeting others, starting a conversation, answering questions, and asking for help in a safe and comfortable environment.

Learning anxiety-management strategies:
Teaching the child techniques to manage fear and anxiety, such as breathing exercises, relaxation techniques, and strategies for managing thoughts related to social situations.

Speech shaping:
Gradually moving from forms of communication that cause less anxiety toward audible speech. For example, the child may begin with gestures or whispering and gradually progress to sounds and words, eventually speaking more clearly and in a wider range of situations.

Second: Play, Art, and Expressive Therapy

Play, drawing, and expressive activities may be useful for children with selective mutism, particularly as supportive approaches that help them express their emotions, understand sources of anxiety, and develop a sense of safety within the therapeutic environment.

Approaches may include:

Drawing:
Encouraging the child to draw their feelings or situations in which they feel afraid or comfortable, without requiring them to talk about the drawing if they are not ready.

Therapeutic play:
Using toys, dolls, and puppets to act out simple social situations. This allows the child to communicate and express themselves through play initially, before gradually moving toward verbal communication.

Drama and role-playing:
Practicing everyday situations, such as greeting someone, asking for something, or answering a question, gradually and in an environment where the child feels safe.

Nonverbal expression:
Allowing the child to use gestures, writing, pictures, or alternative communication methods during the early stages, while gradually encouraging them to progress toward sounds and speech as they become more comfortable.

These activities are generally used as supportive components within a comprehensive treatment plan and should not be considered a replacement for specialized treatment when selective mutism is associated with severe anxiety.

Third: Speech and Language Therapy

Speech and language therapy may be beneficial for children with selective mutism, particularly when they have co-occurring difficulties involving language, speech, or social communication.

Intervention may include:

Speech and language assessment:
Conducting a comprehensive assessment to identify any speech, language, or communication disorder that may contribute to difficulty speaking and interacting with others.

Communication skills training:
Using age-appropriate activities to encourage the child to communicate gradually in a safe environment.

Gradual progression toward speech:
Starting with the level of communication at which the child feels safe, whether nonverbal communication or speech in a familiar environment, and then gradually progressing toward more challenging situations.

Social skills training:
Practicing skills such as greeting others, asking for help, answering questions, expressing needs, and participating in conversations.

Collaboration with the family and school:
Using consistent approaches at home and school and avoiding pressure on the child to speak in front of others or forcing them to provide verbal answers.

The Importance of Collaboration Between Professionals

When necessary, treatment is ideally provided through a multidisciplinary team, with the psychologist or therapist specializing in selective mutism working together with a speech and language therapist, the family, and the school.

This collaboration is particularly important when anxiety is a major factor contributing to the child’s silence. The problem should not be viewed simply as a speech or language difficulty; treatment should also address the anxiety and situations that lead the child to avoid speaking.

The Role of the Family and School in Supporting a Child With Selective Mutism

Both the family and the school play an important role in helping a child with selective mutism reduce anxiety related to speaking, develop a sense of safety and confidence, and gradually improve their communication skills.

This requires supportive approaches that avoid pressure, embarrassment, and forcing the child to speak.

First: The Role of the Family

The family is the primary environment in which a child needs to feel safe and accepted. Parents and caregivers can support the child by:

Providing a safe and supportive environment:
Responding to the child calmly and with understanding, while avoiding criticism or embarrassment because they do not speak.

Avoiding forcing the child to speak:
Not directly or unexpectedly demanding that the child speak in front of others and avoiding repeatedly asking questions such as, “Why don’t you talk?”

Using encouragement and positive reinforcement:
Recognizing the child’s attempts to communicate, whether verbal or nonverbal, and encouraging them without excessive attention or pressure.

Respecting the child’s preferred methods of communication:
Initially allowing the child to use gestures, writing, or pictures, and then gradually encouraging them to transition to speech as they become more comfortable.

Practicing communication situations at home:
Using play and role-playing to simulate simple social situations, such as greeting someone, asking for something, or answering a question.

Collaborating with professionals and the school:
Maintaining regular communication with therapists, specialists, and teachers and consistently applying the agreed-upon strategies at home and at school.

Second: The Role of the School

School is an important part of a child’s life and should provide a supportive environment that reduces communication-related anxiety rather than increasing it.

Important strategies include:

Providing a calm, low-pressure environment:
Treating the child calmly and with understanding in the classroom and avoiding unexpected situations that may increase anxiety.

Avoiding forced verbal responses:
Not forcing the child to answer questions in front of classmates or read aloud unexpectedly, particularly during the early stages of treatment.

Providing alternative ways to communicate:
Allowing the child to use gestures, writing, selecting an answer, or other appropriate communication methods when necessary.

Gradually increasing verbal participation:
Moving gradually from communication situations in which the child feels safe toward more challenging situations according to the treatment plan.

Reinforcing communication attempts:
Encouraging appropriate attempts to communicate while avoiding excessive attention from classmates that could make the child feel embarrassed or pressured.

Educating teachers:
Helping teachers and school staff understand the nature of selective mutism so that the child’s silence is not misinterpreted as stubbornness, lack of cooperation, or deliberate disregard.

Collaborating with the family and professionals:
Maintaining ongoing communication with the family, psychologist or therapist, and speech and language professional when appropriate, while monitoring the child’s progress and adjusting support strategies according to their needs.

The Main Goal of Family and School Support

The primary goal is not to force the child to speak as quickly as possible. Instead, the focus should be on reducing anxiety related to speaking, strengthening the child’s sense of safety and confidence, and gradually increasing their ability to communicate and speak in a structured, supportive, and pressure-free manner.

When the family and school use consistent approaches that align with the child’s treatment plan and avoid pressure or embarrassment, they can create an environment that makes it easier for the child to progress and gradually develop stronger communication skills.