Sudden stuttering in children is usually due to the following reasons: 1, too much anxiety and tension, when children are too nervous, it is easy to have problems with their speech, such as voice trembling or stuttering. 2, it may be a bad imitation, some children do not have any problems at first, and their speech is very fluent, but through some TV or imitation of the children around them who stutter, it is possible that they will have this problem, and even It is also possible that some children are overly sensitive and are too nervous because of the stuttering problem, and they are anxious not to have a stuttering problem, and it can be because of this. Originally a small problem, but suddenly let yourself think too serious, the more you want to make yourself not nervous not stuttering, the more stuttering and even low self-esteem, no confidence, it is easy to suddenly stuttering problem.