The causes of speech and language delays and disorders are often unknown. A number of factors may be working together to contribute to your child's difficulties. Family history is often an indicator, although this may not always be the case. A child may have learnt to a produce a sound incorrectly, or may not have learnt the rules of speech sound production on their own. This may mean the child has a speech sound difficulty, and may not simply outgrow it.
Children who have experienced frequent ear infections with hearing loss are at risk of experiencing a speech sound difficulties.