Stuttering is a speech problem in which you may repeat, draw out, not complete, or skip words or sounds without meaning to. The problem can range from mild to severe.
Stuttering that starts during a child's early language-learning years (ages 2 through 7 years) and goes away on its own before puberty is called normal disfluency. It's a normal part of language development. Most children aren't bothered by it and may not even notice that they're doing it. This type of stuttering may come and go for a while. Then it may slowly decrease until it doesn't happen anymore.
Repeat sounds, parts of words, and sometimes entire words.
Draw out (prolong) a sound or syllable. For example, a child may say "I am fffive years old."
Try to say a word or form a sound, but no sound comes out. They may also pause between words or within a word.
Use a different word in place of a word that's hard to speak.
Show tension or discomfort while talking.
Use only parts of phrases.
Add words or phrases that aren't related.
You may notice that your child stutters more when he or she is excited, anxious, stressed, or tired. Having to ask or answer questions or explain something complex may trigger or increase stuttering.
The same is true for teens and adults who stutter. It tends to get worse at stressful times, such as during public speaking. It often doesn't occur during activities like singing, whispering, talking while alone or to pets, or reading aloud.