Tourette Syndrome: Signs, Symptoms & Diagnostic Criteria

Tourette Syndrome: Comprehensive Symptom Guide

Tourette Syndrome (TS) is a neurodevelopmental disorder characterized by multiple motor tics and at least one vocal tic persisting for >1 year, onset before age 18.

Motor Tics (Involuntary Movements)

• Simple: Eye blinking, facial grimacing, shoulder shrugging, head jerking, nose twitching
• Complex: Touching, tapping, hopping, twisting, gesturing, echopraxia (imitating others' movements)

Vocal/Phonic Tics (Involuntary Sounds)

• Simple: Throat clearing, sniffing, grunting, coughing, barking
• Complex: Words, phrases, palilalia (repeating own words), echolalia (repeating others), coprolalia (obscene words – only ~10–15% of TS)

Key Features

• Tics wax and wane in frequency/severity
• Premonitory urges (sensory discomfort relieved by tic)
• Temporarily suppressible (with tension buildup)
• Worsen with stress, excitement, fatigue; improve with focus/flow
• Comorbidities common: ADHD, OCD, anxiety, learning differences

Diagnosis & Management

Clinical diagnosis based on history and observation. No lab test confirms TS. Treatment (if needed) includes CBIT (behavioral therapy), alpha-2 agonists, antipsychotics, and comorbid condition management.

Important: TS is a spectrum. Many have mild tics not requiring treatment. Supportive environment and education reduce stigma.