The Reasons People Develop A Stutter

I have been asked many times, why certain people develop a stutter. I personally believe there are many reasons and this article describes some of them and gives examples of why certain people of whom I have met via my occupation, started to stutter.
I myself had the speech impediment, known as a stutter for eighteen years, it started to ruin my life from the age of four. After successfully overcoming the stutter at the age of twenty-two, I now as a career help other people to achieve fluency. As you can imagine, I have therefore met and helped many people who stutter, and always ask them, how and why in their opinion their stutter started.
Quite a few people are not sure, however other people state the following reasons:
It was triggered after a traumatic event
It runs in the family
They copied a friend at school who had a stutter and then it stuck with them
An over aggressive relative
Because they were left handed!
A couple of years ago, I had a female client who told me about how she had developed a stutter. She was able to talk fluently until the age of twenty-four. She then fell pregnant for the first time, and was very excited about the prospect of becoming a mum.
She was apprehensive about the birth and her friends had been winding her up by telling her how painful the experience is. She knew that they were only teasing and tried to ignore their comments.
The day of the birth arrived and unfortunately the delivery was particulary difficult and very painful. This really shocked and traumatised her, she had never imagined that it could have been that bad. After the birth of the baby, who was a healthy boy, she developed a stutter.
Not all people who stutter have it from an early age, another one of my clients was fluent until the age of nineteen. At this age he had a car crash and this was the trigger for him to start stuttering.