If you stutter, you may also feel bad about your speech difficulty and experience anxiety, avoidance, low self-esteem, and embarrassment. However, you would not be diagnosed with SAD unless the fear, avoidance, and anxiety are about more than the stuttering. read more
Stuttering and social anxiety disorder (SAD) are both included in the Diagnostic and Statistical Manual of Mental Disorders (DSM-V). However, SAD is categorized as an anxiety disorder and childhood-onset fluency disorder (stuttering) is now considered a communication disorder in the chapter on neurodevelopmental disorders. read more
However, I bet others are using the behavior definition. The frequency and severity of stuttering moments can be increased by various components that can be interpreted (albeit sometimes falsely) as low self-esteem (e.g., lack of confidence in the material, high stress situations). read more
Low-self esteem doesn’t cause stuttering. Stuttering is a disorder of prosody (loosely speaking, the rhythm and intonation of speech) and presumably neurogenic. Your nervous system is what controls your oral-motor coordination, after all. However, being criticized for stuttering can cause low self-esteem. read more
"Social anxiety is the fear of interaction with other people that brings on self-consciousness, feelings of being negatively judged and evaluated, and, as a result, leads to avoidance. Social anxiety is the fear of being judged and evaluated negatively by other people, leading to feelings of inadequacy, inferiority, embarrassment, humiliation, and depression. read more