What Causes Stuttering?

Genetics

It has been shown that stuttering has the potential to run in families. If a child has a parent or grandparent who stuttered, they are more likely to stutter themselves. Stuttering that has been inherited occurs from an abnormality in the area of the brain that processes language. Researchers in the field of genetics now know that over half of all stuttering cases have a genetic cause. While the prevalence of stuttering among family members is high, the severity of the situation does not seem to have genetic influences. For example, if a family member has a severe case of stuttering, another family member may also stutter but only mildly. Geneticists have observed that there is not one certain gene that causes stuttering, but rather, many different genes.

Next, find out how stress can cause a child to stutter.