International Stammering Awareness Day: Support and Resources from CLCH

Published: 22nd October 2021

Today (Friday 22 October 2021) is International Stammering Awareness Day – an annual event to raise awareness of stammering across the world.

According to figures from, it is estimated that worldwide, around 70 million people have a stammer or stutter. This accounts for around one percent of the world's population. 

To mark the day, CLCH's Paediatric Speech and Language Therapy Team have compiled a list of fast facts from the team on stammering in children and adults:

  • stammering affects eight percent of children between the ages of two to five years old. That’s 1 in every 12 children
  • in the UK, up to three percent of adults stammer – this equates to around 1.5 million people
  • around 60% of people who stammer have a family member who stammers
  • stammering isn’t caused by nerves. It’s mainly a neurological and often hereditary condition
  • learning to talk is like learning to walk – it doesn’t always go smoothly
  • many children will stop stammering naturally or with the help of speech therapy
  • what is clear is that parents do not cause stammering. But the way you respond to your child's stammer can make a real difference

A range of posters have been created by Stamma, the British Stammering Association, for use for pre-school and school-age pupils with a stammer, along with a guide for teachers on students who have a stammer. These posters can be downloaded using the links below:

For more information on stammering and support pages that are available, please visit the links below:


Referral to Speech and Language Therapy:

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