Speech Therapy

Causes of Stammering

Stammering is also known as stuttering, which is a form of speech disorder. This is a disorder in the affected individual’s fluency of speech. There are various causes of stammering. The W.H.O.’s definition of stammering is “ a problem in the rhythm of speech in which the person knows exactly what he/she wishes to say, but face difficulty in saying it because of an involuntary cessation, prolongation or repetition of sound. This disorder usually heightens by syntactically or emotionally demanding speech. Read on to know the causes of stammering.

Causes of Stammering

Causes of Stammering

Speech experts are not completely sure about the causes of stammering. But it is a well-known fact that a person who stutters is more likely to have a very close family member who also has the speech disorder. Here are a few causes of stammering:

  • Developmental stammering – When children learn to speak slowly, they most often stutter. This mostly happens at a very early stage when their language and speech skills are not fully developed to accompany the speed at which they want to talk. As the developmental stage progresses and they gradually learn to speak fluently, most children experience fewer symptoms of stammering.
  • Neurogenic stammering – This happens when the signals between the muscles and speech nerves and the brain are not working properly. This mainly affects children, although adults can also be affected after experiencing brain injury or a stroke. This type of stammering can form lesions (abnormal tissue) in the brain’s motor speech location.
  • Psychological factors – These factors were held responisble as the main reasons for long-term stuttering earlier. Although, these factors are no longer considered to be the main reason. But these factors may make the speech disorder worse for affected individuals like embarrassment, stress, etc. However, these factors are no longer the underlying long-term factors of stuttering.

    To put it more simply, stress, nervousness, low self-esteem and anxiety do not result in stuttering. On the contrary, these are the outcome of living with a stigmatized speech disorder which only worsens the symptoms.

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