Yoshikazu Kikuchi, MD, PhD: Clinicians should consider comorbidities such as social anxiety disorder, depression, obsessive-compulsive disorder, Tourette’s syndrome, and even drug-induced stuttering in their differential diagnosis. Some may think stuttering is only for speech-language pathologists to manage, but after adolescence, comorbid social anxiety disorder becomes very common. Yoshikazu Kikuchi, MD, PhD: About 50% of individuals with stuttering over the age of 10 also have social anxiety disorder. Yoshikazu Kikuchi, MD, PhD: Social anxiety disorder often causes difficulties when speaking in front of groups. Therefore, clinicians typically follow the guidelines for social anxiety disorder, which may include SSRIs, along with cognitive-behavioral therapy (CBT).