Excoriation (Skin-Picking) Disorder

Excoriation Disorder, also known as skin-picking disorder, involves recurrent picking at one's own skin — most commonly the face, arms, and hands — resulting in visible lesions or scarring. Picking is often triggered by minor skin irregularities (a pimple, scab, or rough patch), stress, or boredom, and provides brief tension relief or satisfaction, but the cycle typically continues despite repeated attempts to stop and despite the resulting skin damage.

Excoriation Disorder is defined as recurrent skin picking resulting in skin lesions, with repeated attempts to decrease or stop the behavior, causing clinically significant distress or impairment, and not attributable to a substance, another medical or dermatological condition alone, or better explained by another mental disorder.

Like trichotillomania, excoriation disorder is understood as a body-focused repetitive behavior with a genetic component, frequently co-occurring with OCD or trichotillomania in the same individual or family. Picking often begins in response to a genuine skin irregularity (acne, a healing wound) that becomes a self-perpetuating habitual behavior, reinforced by the tension relief or satisfaction it provides in the moment.

• Family history of excoriation disorder, trichotillomania, or OCD
• Underlying dermatologic conditions (acne, eczema) that provide an initial trigger for picking
• High stress, anxiety, or perfectionistic traits
• Boredom-prone states or frequent sedentary activity
• Co-occurring anxiety or depressive disorders

Excoriation disorder shares overlapping CSTC circuit and habit-formation pathway involvement with trichotillomania, reflecting both an anxiety/tension-reduction component and an automatic, habitual component, which is why treatment approaches for the two conditions are closely related.

• Recurrent picking at skin, most commonly the face, arms, or hands
• Use of fingernails, tweezers, pins, or other tools to pick at the skin
• Picking often triggered by a real or perceived skin irregularity
• Resulting lesions, scabbing, or scarring from repeated picking
• Repeated, often unsuccessful attempts to stop
• Significant time spent picking or attempting to camouflage the resulting skin damage
• Picking to relieve tension, boredom, or in response to stress

• Recurrent skin picking resulting in skin lesions
• Repeated attempts to decrease or stop the behavior
• Causes clinically significant distress or impairment
• Not attributable to a substance or solely to another medical/dermatological condition
• Not better explained by another mental disorder

Conditions a psychiatrist will consider and rule out before confirming this diagnosis:

Primary dermatologic conditions

Eczema, scabies, or other itchy skin conditions can lead to scratching; treating the underlying dermatologic cause is the priority if picking is purely a response to itch rather than a repetitive, hard-to-control behavior.

Obsessive-Compulsive Disorder

Diagnosed instead when picking is specifically driven by contamination-related obsessions rather than a standalone body-focused repetitive behavior.

Trichotillomania

Frequently co-occurs, but involves hair pulling rather than skin picking specifically.

Substance-induced skin picking

Stimulant use, particularly methamphetamine, can cause a distinct pattern of skin-picking behavior (sometimes called 'meth mites' or formication-related picking) that resolves with substance treatment.

• Clinical and dermatological examination to assess skin damage and exclude a primary dermatologic cause
• Skin Picking Scale to assess severity
• Screening for co-occurring trichotillomania, OCD, anxiety, or depression
• Substance use history where a stimulant-induced cause is suspected

Habit Reversal Training is the first-line, most effective treatment, often combined with strategies to manage underlying skin irregularities that trigger picking. N-acetylcysteine has evidence of benefit, and SSRIs may help, particularly with co-occurring anxiety or depression.

N-acetylcysteine (NAC)

Has evidence supporting reduced picking urges, similar to its use in trichotillomania.

SSRIs

May help reduce picking behavior and are useful for co-occurring anxiety or depressive symptoms.

Habit Reversal Training (HRT)

Combines awareness training, a competing response (such as clenching fists or using a stress ball), and modification of high-risk situations.

Comprehensive Behavioral (ComB) model

Addresses the range of sensory, emotional, and situational triggers specific to the individual.

Acceptance and Commitment Therapy (ACT)

Builds tolerance of picking urges without acting on them.

• Keep skin moisturized and treat underlying dermatologic irregularities to reduce picking triggers
• Use gloves or bandages over high-risk areas during vulnerable times (e.g., while watching television)
• Keep nails trimmed short and consider fidget tools as a competing response
• Identify and plan for boredom- or stress-related picking triggers in advance

Excoriation disorder tends to follow a chronic, waxing-and-waning course but responds well to Habit Reversal Training, with most people achieving significant reduction in picking frequency and skin damage. Untreated, ongoing picking can cause permanent scarring and significant distress about appearance.

• Prompt treatment of dermatologic conditions (acne, eczema) that can trigger initial picking
• Stress management and building alternative coping strategies for tension and boredom
• Early behavioral intervention before picking becomes a deeply entrenched habit

Avoid repeatedly commenting on skin lesions or pointing out picking, as this tends to increase shame and secretive picking. Support treatment engagement, help manage underlying skin triggers (appropriate skincare), and encourage use of competing-response tools during high-risk times.

1. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 5th Edition, Text Revision (DSM-5-TR).
2. TLC Foundation for Body-Focused Repetitive Behaviors.