The family of a three-year-old comes in worried: "For the past month he's been repeating the beginnings of words. We thought it would pass, and it hasn't."

This is one of the situations I meet most often at this age. And the first thing I tell families usually reassures them: most disfluency that begins in the pre-school years settles on its own. But the second half of that sentence matters too: we cannot know at the outset in which children it will settle.

Not Every Disfluency Is Stuttering

The years between two and five are when language develops fastest. The sentence in the child's mind is more complex than the mouth can yet build, and that mismatch produces stumbles in speech.

This is called developmental disfluency, and most children show it.

The distinction is made like this:

In developmental disfluency the child usually repeats a whole word or a short phrase: "I-I-I'm going." The repetitions are few, there is no strain, and the child is unaware of it.

In stuttering the disfluency is at the level of the sound or syllable: "b-b-b-but." A sound may be drawn out, or speech may stop entirely for a moment while the child strains to get the word out. Tension in the face, blinking or hand movements may accompany it.

In the second picture the child is usually aware of what is happening, and that awareness can turn over time into avoidance of speaking.

What Causes It?

First, the most widespread mistake needs correcting: stuttering is not caused by fright, trauma or by anything the parents did wrong.

That belief is common and does harm, because it burdens families with guilt and exposes children to unnecessary attempts at "correction".

On current understanding, stuttering relates to the neural processes that organise the production and timing of speech. A hereditary predisposition is clear: stuttering is more common in children with a family history.

Stress does play a part, but as a modulator, not a cause. Disfluency increases when the child is excited, tired or hurried, and decreases when they are relaxed. That fluctuation is part of the natural course and should not lead to the conclusion that "sometimes he does it and sometimes he doesn't, so it must be a habit."

In Which Children Is It More Likely to Persist?

Precise prediction is not possible, but some features influence the decision to follow up:

  • Disfluency lasting longer than six months
  • Onset after the age of four, or continuing beyond it
  • A family history of stuttering
  • Disfluency increasing rather than decreasing
  • The child showing signs of strain — facial tension, extra movements
  • The child beginning to avoid speaking
  • An accompanying language or developmental difficulty

Where several of these occur together, we request assessment without waiting.

How Should Families Respond at Home?

What the family can do is more effective than is generally assumed. But what needs doing is the opposite of what most parents instinctively do.

  • Instructions such as "slow down", "take a deep breath", "calm down". These focus the child on their speech and increase the disfluency.

  • Completing the sentence or supplying the word

  • Interrupting, saying "think first, then say it"

  • Discussing the situation in front of other people

  • "Showing" the child's speech to others, asking them to repeat

  • Slow your own speech. On its own this is the single most effective measure. Speaking slowly works where telling the child to speak slowly does not.

  • Wait until the sentence is finished; keep eye contact.

  • Do not fire questions; set aside a few minutes a day for calm, back-and-forth conversation.

  • In settings where turns are needed, give the child their turn and let them know they will not be cut off.

  • Attend to sleep; tiredness increases disfluency.

  • Respond to what the child says, not to how they said it.

When to See a Specialist

A speech and language therapist's assessment is requested where:

  • Disfluency has lasted more than six months
  • It continues past the age of five
  • It is increasing
  • The child shows signs of strain
  • The child avoids speaking, or says "I can't say it"
  • There is a family history (earlier assessment)

Early assessment is needed not for "early diagnosis" but for the right follow-up plan. Seeing a therapist does not mean therapy begins immediately in every child; in some, family guidance and monitoring are enough.

In children approaching school age, assessment should not be postponed: reactions from peers begin at this stage, and a child who avoids speaking makes the problem larger.

Siblings and Peers

A sibling imitating or laughing at home is a common situation. It does not increase the stuttering, but it does reduce the child's willingness to speak.

The sibling should be given an age-appropriate explanation, away from the child: that everyone does some things differently, and that mocking hurts. With school-age children, speaking to the teacher also helps.

In Summary

Most disfluency beginning in the pre-school years resolves — but "it resolves" does not mean "wait". If it is lasting, increasing, or the child is straining, request an assessment.

What helps most at home is not trying to correct the child's speech, but giving them a setting in which they can speak without being hurried.