my Son is 6+ yrs old and his speech is still not clear ? few of the words he is not clear is this normal or do I need to consult?

A. hi dear If your child has a speech delay, it doesn't always mean something is wrong. You may simply have a late bloomer who'll be talking your ear off in no time. A speech delay can also be due to hearing loss or underlying neurological or developmental disorders. Many types of speech delay can be effectively treated.