Self-Harm: Types, Warning Signs, and When to Seek Help

Self-harm — clinically referred to as nonsuicidal self-injury (NSSI) — is the deliberate, self-inflicted destruction of body tissue without suicidal intent. It is not a mental health disorder in itself but rather a symptom or behavioral pattern that occurs across a range of psychological conditions. The DSM-5-TR includes Nonsuicidal Self-Injury as a "Condition for Further Study," recognizing its clinical significance while acknowledging that research on its classification continues to evolve.

Self-harm is far more common than many people realize. Research estimates suggest that approximately 17–18% of adolescents and 4–6% of adults engage in self-injury at some point in their lives, according to large-scale meta-analyses published in clinical journals. It affects people across all genders, ages, ethnicities, and socioeconomic backgrounds, though onset most frequently occurs between ages 12 and 15.

One of the most important distinctions to understand is that self-harm and suicide are not the same thing. Most people who self-injure are not trying to end their lives — they are attempting to cope with overwhelming emotional pain. However, self-harm is a significant risk factor for future suicide attempts, which is why it always warrants clinical attention and should never be dismissed as "attention-seeking" behavior.

Self-harm takes many forms, some of which are widely recognized and others that are frequently overlooked. Understanding the full spectrum of self-injurious behavior is essential for early identification.

Common types of self-harm include:

• Cutting: The most frequently reported form of NSSI, involving the use of sharp objects to make cuts or scratches on the skin, most commonly on the arms, thighs, or abdomen.
• Burning: Using cigarettes, lighters, matches, heated objects, or caustic chemicals to inflict burns on the skin.
• Hitting or banging: Punching oneself, hitting one's head against walls or hard surfaces, or deliberately striking body parts against objects.
• Scratching or skin-picking: Repeatedly scratching skin to the point of drawing blood or causing wounds, or compulsively picking at existing wounds to prevent healing. (Note: this can overlap with excoriation disorder, a distinct clinical condition.)
• Hair-pulling: Pulling out hair from the scalp, eyebrows, or other body areas, which can overlap with trichotillomania.
• Interfering with wound healing: Deliberately reopening wounds, removing stitches, or preventing injuries from healing properly.
• Ingesting harmful substances: Swallowing objects, toxic substances, or excessive amounts of medication without the intent to die.
• Self-embedding: Inserting objects beneath the skin, a less common but clinically documented form of NSSI.

Some forms of self-harm are less visible or more socially normalized, making them harder to recognize. These can include excessive exercise intended to cause pain, deliberate recklessness, substance misuse as a form of self-punishment, or food restriction motivated by a desire to harm rather than by body image concerns alone.

Understanding why people self-harm requires understanding what it feels like from the inside. The subjective experience is complex, and people who self-injure commonly describe a cycle of emotional buildup, the act itself, and its aftermath.

Before the act: Most people describe a state of intense emotional pressure — a feeling of being overwhelmed, numb, or emotionally flooded. Common experiences include rising anxiety, a sense of emotional "deadness" or dissociation, intense shame or self-loathing, or a feeling that emotional pain is unbearable and has no other outlet. Many describe a compulsive quality, where the urge to self-harm builds and becomes increasingly difficult to resist.

During the act: People frequently report an immediate sense of relief or release when they self-injure. Neurobiological research suggests this is partly because physical pain activates the body's endogenous opioid system, producing a brief analgesic and calming effect. Some individuals describe feeling "real" again after a period of dissociation or emotional numbness. Others describe the physical pain as easier to understand and manage than their psychological pain — it gives abstract suffering a concrete, visible form.

After the act: Relief is typically short-lived. It is often followed by feelings of shame, guilt, self-disgust, and fear of discovery. This emotional aftermath frequently feeds back into the cycle of distress that triggered the self-harm, creating a self-reinforcing loop. Over time, many individuals report needing to engage in more frequent or more severe self-injury to achieve the same regulatory effect — a pattern that parallels tolerance in substance use.

Common functions of self-harm identified in clinical research include:

• Affect regulation: Reducing or managing unbearable emotional states (the most commonly reported function)
• Self-punishment: Expressing internalized anger, shame, or self-hatred
• Anti-dissociation: "Feeling something" to counteract emotional numbness or depersonalization
• Communication: Expressing distress when words feel inadequate (this is not the same as "attention-seeking")
• Interpersonal influence: In some cases, attempting to elicit care or change in one's environment

Self-harm is typically a secretive behavior. People who self-injure often go to great lengths to hide it, driven by shame and fear of being misunderstood. Recognizing the warning signs requires attentiveness to both physical and behavioral cues.

Physical warning signs:

• Unexplained cuts, burns, bruises, or scratches — especially in patterns or on areas typically covered by clothing (forearms, thighs, abdomen, upper arms)
• Frequent "accidents" or implausible explanations for injuries
• Scars in various stages of healing, suggesting an ongoing pattern
• Wearing long sleeves, long pants, or wristbands in warm weather or situations where it seems inappropriate
• Finding sharp objects, lighters, or bloodstained tissues among someone's belongings
• Wounds that do not seem to heal because they are being reopened

Behavioral and emotional warning signs:

• Withdrawal from friends, family, and previously enjoyed activities
• Increased secrecy about one's body or time alone
• Expressions of worthlessness, self-hatred, or hopelessness
• Emotional instability — rapid shifts between distress and apparent calm
• Difficulty managing emotions, especially anger, frustration, or sadness
• Giving away possessions or making statements about being a burden (which may also signal suicidal ideation and requires immediate attention)
• Changes in eating or sleeping patterns
• Decline in academic, occupational, or social functioning

In adolescents specifically, additional signs include sudden changes in peer groups, social media content referencing self-harm or emotional pain, and an intense preoccupation with themes of suffering in art, writing, or music. It is important not to pathologize normal adolescent emotional expression, but persistent patterns combined with other warning signs warrant concerned attention.

Self-harm is not exclusive to any single mental health condition. It occurs across a wide diagnostic spectrum, though it is more prevalent in certain disorders:

• Borderline Personality Disorder (BPD): Self-harm is listed as one of the nine diagnostic criteria for BPD in the DSM-5-TR. Research suggests that 50–80% of individuals with BPD engage in self-injurious behavior. However, it is critical to understand that self-harm does not automatically indicate BPD, and many people who self-harm do not meet criteria for any personality disorder.
• Major Depressive Disorder: Depression is one of the most common co-occurring conditions in individuals who self-harm. Feelings of worthlessness, hopelessness, and emotional pain are central drivers.
• Post-Traumatic Stress Disorder (PTSD) and Complex PTSD: Self-harm is strongly associated with histories of trauma, particularly childhood abuse and neglect. It frequently functions as a response to dissociation, flashbacks, or trauma-related shame.
• Anxiety Disorders: Some individuals use self-harm to manage overwhelming anxiety or panic, finding that physical pain interrupts spiraling cognitive patterns.
• Eating Disorders: Self-harm and eating disorders frequently co-occur, sharing underlying features such as difficulties with emotion regulation, body dissatisfaction, and self-punishment.
• Substance Use Disorders: Self-harm and substance misuse share functional similarities — both serve as maladaptive coping strategies for emotional distress.
• Autism Spectrum Disorder and Intellectual Disabilities: Self-injurious behavior (such as head-banging or self-biting) can occur in neurodevelopmental contexts, often serving sensory or communicative functions that differ from NSSI in the general population.
• Dissociative Disorders: Self-harm is common among individuals who experience dissociation, serving to restore a sense of physical presence or reality.

It is also possible for self-harm to occur in individuals who do not meet full diagnostic criteria for any specific mental health condition. Situational stressors — such as bullying, relationship breakdowns, grief, academic pressure, or identity-related distress — can precipitate self-harm in otherwise psychologically healthy individuals, particularly adolescents.

This is a question that requires careful framing. Self-harm is never a "normal" or healthy coping mechanism, even when it occurs in contexts where it is statistically common (such as adolescence). However, there is a difference between understanding the prevalence of self-harm and dismissing its seriousness.

Some clarifications:

• Single, isolated incidents — such as a teenager scratching themselves once during a period of intense distress — are not necessarily indicative of a chronic pattern, but they still deserve a compassionate, non-judgmental conversation and monitoring.
• Repetitive, escalating, or secretive self-injury is always a cause for concern. Any pattern involving multiple episodes, increasing severity, or concealment indicates a significant coping difficulty that warrants professional evaluation.
• Any self-harm accompanied by suicidal thoughts — even passive ones like "I wish I weren't alive" — requires immediate professional attention.

Behaviors that are sometimes confused with self-harm but are typically distinct:

• Nail-biting, skin-picking, or hair-twisting that is mild, habitual, and not driven by emotional distress is generally classified as a body-focused repetitive behavior and is common in the general population.
• Culturally or spiritually sanctioned practices (certain rituals, piercings, tattoos) performed in a normative social context are not classified as NSSI.
• Extreme sports or physically demanding activities are not self-harm unless the intent is specifically to cause injury or pain as an emotional coping mechanism.

When to worry — a practical guide:

• The behavior is repeated or is becoming more frequent
• There is an escalating severity of injury
• The person is hiding injuries or becoming increasingly secretive
• Self-harm is the primary way the individual manages emotional distress
• Functioning at school, work, or in relationships is declining
• The person expresses suicidal ideation, hopelessness, or a wish to die

Self-assessment is not a substitute for professional evaluation, but reflecting on your own patterns can be a valuable first step toward seeking help. The following questions are drawn from clinically relevant frameworks and can help you consider whether your experiences warrant further attention.

Ask yourself:

• Do I deliberately hurt myself when I feel overwhelmed, numb, or emotionally distressed?
• Has this behavior occurred more than once?
• Do I hide my injuries from others or make up explanations for them?
• Is physical pain the primary way I cope with emotional suffering?
• Do I feel a buildup of tension or urgency before self-injuring?
• After self-harming, do I feel temporary relief followed by shame, guilt, or self-criticism?
• Have my injuries become more severe or more frequent over time?
• Do I have thoughts of suicide, even if I do not act on them?
• Is self-harm interfering with my relationships, work, school, or daily life?

If you answered "yes" to several of these questions, this pattern is consistent with nonsuicidal self-injury and strongly suggests that professional support would be beneficial. You do not need to meet any specific threshold of severity to deserve help — reaching out early is one of the most protective steps you can take.

Important: If you are currently having thoughts of suicide or have recently engaged in self-harm that required medical attention, please contact a crisis service immediately. In the United States, the 988 Suicide and Crisis Lifeline (call or text 988) provides free, confidential support 24/7. The Crisis Text Line is available by texting HOME to 741741.

While professional treatment is the most effective approach for addressing self-harm, evidence-based coping strategies can help manage urges in the moment and build longer-term emotional resilience. These strategies are drawn from therapeutic frameworks with strong research support.

In-the-moment strategies (urge management):

• Ice technique: Holding ice cubes in your hands or placing them against your skin produces an intense physical sensation that can serve as a less harmful substitute for the sensory input self-harm provides. This is one of the most widely recommended harm-reduction techniques in clinical practice.
• Delay and distract: Commit to waiting 15 minutes before acting on an urge. During that time, engage in an absorbing activity — exercise, drawing, calling someone, or completing a specific task. Research shows that urges to self-harm typically peak and subside within 15–30 minutes if not acted upon.
• Grounding techniques: The 5-4-3-2-1 method (naming 5 things you see, 4 you hear, 3 you can touch, 2 you smell, 1 you taste) can interrupt dissociative states that often precede self-harm.
• Red marker method: Drawing on the skin with a red marker in places where you would typically self-injure can provide a visual cue that partially satisfies the urge without causing tissue damage.
• Intense physical activity: Running, doing push-ups, or engaging in vigorous physical movement can provide a physiological outlet for the tension that drives self-harm urges.

Longer-term strategies (building emotional regulation skills):

• Dialectical Behavior Therapy (DBT) skills: DBT is the treatment with the most robust evidence base for reducing self-harm, particularly in individuals with features of borderline personality disorder. Core DBT skills include distress tolerance (surviving crises without making them worse), emotion regulation (understanding and modifying emotional responses), interpersonal effectiveness (communicating needs and maintaining relationships), and mindfulness (observing experiences without judgment). DBT skills can be learned in group settings, individual therapy, or through structured workbooks.
• Cognitive Behavioral Therapy (CBT) approaches: CBT helps identify the thought patterns — such as "I deserve to be punished" or "This is the only way to feel better" — that maintain self-harm behavior, and systematically challenges and replaces them.
• Emotion labeling: Research in affective neuroscience shows that simply naming an emotion ("I am feeling intense shame right now") activates prefrontal cortical regions that dampen amygdala reactivity, reducing the intensity of the emotion. This is sometimes called "name it to tame it."
• Building a safety plan: A written plan that identifies personal warning signs, coping strategies, people to contact, and professional resources to access during a crisis. Safety plans are strongly supported by evidence as a suicide prevention tool and are equally useful for managing self-harm.
• Reducing access to means: Removing or securing objects commonly used for self-injury can reduce impulsive acts. This is consistent with the broader evidence on means restriction in self-harm and suicide prevention.

You should seek professional evaluation if:

• You have self-harmed more than once
• You are thinking about self-harm frequently, even if you have not yet acted on the urge
• Self-harm is your primary coping mechanism for emotional distress
• Your injuries are becoming more severe over time
• You feel unable to stop self-harming despite wanting to
• You are experiencing symptoms of depression, anxiety, PTSD, or other mental health conditions alongside self-harm
• You have any thoughts of suicide — even fleeting or passive ones
• Self-harm is affecting your relationships, work, school, or daily functioning

What treatment looks like:

Effective treatment for self-harm typically involves psychotherapy. The approaches with the strongest evidence base include:

• Dialectical Behavior Therapy (DBT): Originally developed for borderline personality disorder, DBT has the most extensive evidence for reducing self-harm and suicidal behavior. It combines individual therapy with skills training groups.
• Cognitive Behavioral Therapy (CBT): Particularly effective when self-harm is linked to identifiable thought patterns, depression, or anxiety.
• Mentalization-Based Therapy (MBT): Focuses on improving the capacity to understand one's own and others' mental states, which is often impaired in individuals who self-harm.
• Emotion-Focused Therapy: Helpful for individuals whose self-harm is driven by difficulties identifying, tolerating, or expressing emotions.

Medication is not a direct treatment for self-harm, but it can be beneficial when self-harm occurs in the context of treatable conditions like depression, anxiety, or PTSD. A psychiatrist can evaluate whether medication might be a helpful component of a broader treatment plan.

How to start: Begin by speaking with a primary care provider, a mental health professional, or a school counselor. You can also contact the 988 Suicide and Crisis Lifeline (call or text 988) or the Crisis Text Line (text HOME to 741741) for immediate guidance and referrals. You do not need to be in a crisis to reach out — seeking help early is a sign of strength, not weakness.

Discovering that someone you care about is self-harming can be frightening and confusing. Your response matters significantly. Here is what the evidence suggests about being helpful:

• Stay calm. Reacting with shock, anger, or panic — even if those emotions are understandable — often increases shame and makes the person less likely to open up.
• Listen without judgment. Avoid statements like "Why would you do that to yourself?" or "You have so much to live for." Instead, try: "I'm here. I want to understand what you're going through."
• Do not issue ultimatums. Demanding that someone "just stop" self-harming is unlikely to be effective and can damage trust. Self-harm serves a function, and removing the behavior without addressing the underlying distress often leads to other harmful coping mechanisms.
• Take it seriously. Never dismiss self-harm as "just a phase" or "attention-seeking." Even when self-harm serves a communicative function, the distress behind it is real.
• Encourage professional help. Offer to help them find a therapist, accompany them to an appointment, or contact a crisis line together.
• Take care of yourself. Supporting someone who self-harms is emotionally demanding. Seek your own support from a therapist, a support group, or trusted friends.

If you believe someone is in immediate danger — particularly if they express suicidal intent, have inflicted a serious injury, or are in a medical emergency — call 911 or take them to the nearest emergency department.