Trichotillomania (Hair-Pulling Disorder)

Understanding and Treating a Body-Focused Repetitive Behavior

Trichotillomania, often called "trich" or hair-pulling disorder, is a body-focused repetitive behavior (BFRB) characterized by recurrent pulling out of one's hair, resulting in noticeable hair loss. Despite affecting roughly 1–2% of the population, it remains poorly recognized and under-treated. The DSM-5 classifies it within the Obsessive-Compulsive and Related Disorders, but it differs from OCD in mechanism and treatment.

Key Facts

  • Lifetime prevalence: 1–2%; female-to-male ratio ~4:1 in clinical samples
  • Onset typically ages 9–13
  • Most commonly pulled: scalp, eyebrows, eyelashes, pubic area
  • Two patterns: automatic (unconscious) and focused (intentional)
  • Habit Reversal Training (HRT) and ComB are first-line treatments
  • SSRIs less effective than for OCD

DSM-5 Diagnostic Criteria

Trichotillomania (312.39 / F63.3) requires:

  1. Recurrent pulling out of one's hair, resulting in hair loss
  2. Repeated attempts to decrease or stop hair pulling
  3. Hair pulling causes clinically significant distress or impairment
  4. Not attributable to a medical condition (e.g., dermatologic)
  5. Not better explained by another mental disorder

Two Patterns: Automatic vs. Focused

Automatic Pulling

  • Occurs outside conscious awareness
  • Often during sedentary activities: reading, watching TV, driving, lying in bed
  • Person discovers pulled hairs without remembering pulling
  • Most common pattern

Focused Pulling

  • Deliberate, often in response to emotional state
  • Triggered by anxiety, sadness, frustration, or specific tactile sensations
  • Often follows a ritual: searching for a specific hair, pulling, examining root, sometimes oral behaviors
  • Provides brief relief or pleasure

Most people have a mix of both patterns; treatment must address whichever predominates.

Triggers and Maintenance

Common Triggers

  • Stress, anxiety, boredom
  • Specific tactile sensations (coarse hair, gray hair)
  • Sedentary activities with free hands
  • Mirrors and bathroom settings
  • Tiredness or under-stimulation

Maintenance Cycle

  • Pulling produces brief tension relief or sensory gratification
  • Relief reinforces the behavior
  • Resulting hair loss creates shame and concealment behaviors
  • Stress from concealment increases urges to pull

Consequences

  • Visible hair loss leading to elaborate concealment (wigs, makeup, head coverings)
  • Avoidance of activities that risk exposure (swimming, intimacy, windy weather)
  • Social isolation and anxiety
  • Trichobezoar — rare bowel obstruction from swallowed hair (in patients with trichophagia)
  • Comorbid depression, anxiety, OCD common

Evidence-Based Treatment

Habit Reversal Training (HRT) — First-Line

  1. Awareness training: identify high-risk situations, sensations, and warning signs
  2. Competing response: learn an incompatible behavior (clenching fists, sitting on hands) to use when urges arise
  3. Social support: involve family or partner in encouragement

ComB (Comprehensive Behavioral Treatment)

  • Extended HRT addressing five domains: Cognitive, Affective, Sensory, Motor, Place
  • Tailored interventions for each domain

ACT-Enhanced HRT

  • Acceptance and Commitment Therapy combined with HRT
  • Strong evidence for adult trichotillomania
  • See ACT

Medication

  • N-acetylcysteine (NAC): over-the-counter supplement with modest evidence
  • SSRIs: less effective than for OCD
  • Clomipramine: some evidence
  • Medication generally adjunctive to HRT

Self-Help Strategies

  • Barriers: wear hats, gloves, or finger covers in high-risk settings
  • Substitute sensation: fidget toys, koosh balls, hair-like fibers
  • Trim nails: reduces grip on hairs
  • Track triggers: log time, place, and emotional state of pulling
  • Self-compassion: shame fuels the cycle; recovery requires patience with relapses
  • Connect with the BFRB community: the TLC Foundation for BFRBs offers resources and support

Conclusion

Trichotillomania is a neurobiological behavior disorder, not a habit or weakness. It responds to behavioral treatment with strong evidence — particularly HRT and ComB — but is poorly served by generic CBT or SSRIs alone. The shame surrounding hair loss often delays treatment for years; greater awareness is the most actionable change. Recovery is realistic; many people achieve significant or complete reduction with appropriate treatment.

Related Topics