This article contains information about self-harm, which can be a mental health crisis. For immediate 24/7 crisis support, call or text 988 the Suicide & Crisis Lifeline or visit https://988lifeline.org.
Self-harm is often a way for teens to cope with overwhelming emotions they may not yet have the tools to understand or express. Rather than being about seeking attention, it’s usually a response to deep emotional pain. For many teens, these behaviors are closely tied to past experiences of trauma and the ways those experiences can shape how the brain develops and responds to stress.
At HillsidesCares, we work with teens and families every day to address the root causes of self-harm through trauma-informed, evidence-based care. This article explores why teens self-harm, how trauma reshapes the brain and emotional regulation, the role of PTSD, and how healing is possible with the right support.
Table of Contents
What is self-harm?
Self-harm, also known clinically as non-suicidal self-injury (NSSI), refers to intentionally hurting one’s own body without the intent to die. Common forms of self-harm include cutting, burning, scratching, or hitting oneself.
While self-harm and suicide are different, they can overlap in risk, which is why both should be taken seriously. For many teens, self-harm is not about wanting to die; it’s about trying to cope. Self-harming behaviors may provide a teen with:
- Temporary emotional relief
- A sense of control
- A way to express internal pain externally
- A distraction from overwhelming thoughts
Understanding why people self-harm requires looking beyond the behavior itself and recognizing it as a coping mechanism for distress.
At HillsidesCares, we help teens understand the underlying emotional drivers behind self-harm and develop safer, more effective ways to cope. Teens struggling with self-harm may benefit from specialized mental health treatment for teens, where both the behavior and its underlying causes are addressed.
Why do teens self-harm?
There is no single answer to why teenagers cut themselves or use other forms of self-harm. It may be connected to trauma, depression, anxiety, bullying, isolation, family stress, difficulty regulating emotions, or exposure to self-harm among peers or online. Often, several of these risk factors are present at the same time.
Trauma and self-harm
A teen living with hypervigilance, shame, anger, numbness, or intrusive memories may use self-harm to interrupt feeling overwhelmed. Over time, this temporary relief can feel like the only way they know how to cope, which reinforces the behavior even though it creates new physical and emotional harm.
Trauma and the developing brain
The adolescent brain is still developing, especially the systems involved in planning, impulse control, and emotional regulation. Experiences such as abuse, neglect, bullying, loss, or chronic stress may affect emotional development. After a traumatic event, a teen may become more sensitive to danger cues and remain in a fight, flight, or freeze state even when the immediate threat has passed.
The amygdala, which helps detect threats, may become more reactive. The prefrontal cortex supports decision-making and impulse control but is still maturing during adolescence. Trauma can also keep the nervous system on high alert. Together, these responses may make strong emotions feel faster, more intense, and harder to settle.
There are different types of trauma and trauma triggers, and both how a teen processes and responds to trauma are deeply personal experiences. Noticing patterns, including self-harm, can help you recognize when it’s time to reach out for support.
Depression and self-harm
Depression, with feelings of persistent emptiness, hopelessness, intrusive thoughts, low self-esteem, or a sense that life is out of control, can lead to self-harm. A teen may self-harm as an unsafe way to feel something, release emotional pain, or regain control. Recent research has shown a strong link between self-esteem issues, depression, and self-harm.1
Treating depression and self-harm together can help a teen understand the cycle and find safer ways to cope. HillsidesCares offers a depression treatment program for teens for families seeking age-appropriate support.
Substance use and self-harm
Using substances is not always an explicit form of self-harm, but substance use can increase the risk of self-harm in adolescents. Emotional dysregulation, distress, impulsivity, and co-occurring mental health concerns are all common in people who self-harm and who abuse substances. New research shows that there are associations between adolescent substance use and self-harm, though one behavior does not guarantee the other.2
If you seek professional support and notice both behaviors, tell the evaluating clinician about each one. A coordinated assessment can help the care team understand how your child’s mental health symptoms, safety concerns, and substance use interact.
Warning signs of self-harm in teens
Recognizing the signs of self-harm early can make a critical difference.
Physical signs:
- Unexplained cuts, burns, bruises, scratches, or scars
- Frequent injuries or explanations that don’t add up with normal behavior
- Blood stains on clothing, towels, bedding, or personal items
- Repeatedly picking at wounds or preventing them from healing
Behavioral signs:
- Wearing long sleeves or pants in hot weather or otherwise hiding parts of the body
- Withdrawing from friends, family, school activities, or routines
- Spending long periods alone, especially in bedrooms or bathrooms
- Collecting or hiding razors, scissors, lighters, or other objects that could be used for injury
- Changes in eating or sleeping habits
Emotional signs:
- Strong mood swings, irritability, anxiety, or depression
- Expressions of shame, guilt, hopelessness, worthlessness, or feeling like a burden
- Difficulty calming down after conflict or stress
- A sudden sense of relief after a period of intense distress
Self-harm can also affect trust and connection at home. Learning about trauma and relationships may help families understand why a teen pulls away and how to respond with steadiness.
Start with a private, calm conversation. Describe what you’ve noticed, ask open questions, and listen without demanding a promise that the behavior will stop. Remove immediate hazards when you can do so safely and arrange a professional evaluation.
How is self-harm treated?
Treatment should address immediate safety, the purpose the behavior serves, and any underlying concerns such as trauma, depression, anxiety, or family stress. A clinician may recommend individual therapy, group therapy, family therapy, a higher level of care, or a combination based on your teen’s unique needs.
Dialectical behavior therapy
Dialectical behavior therapy (DBT) teaches practical skills in four primary areas for managing intense emotions and reducing unsafe responses.
- Mindfulness: Noticing thoughts, feelings, and urges without acting on them automatically
- Distress tolerance: Getting through a crisis without making it worse or using self-harm
- Emotion regulation: Understanding emotions and changing patterns that increase vulnerability
- Interpersonal effectiveness: Asking for help, setting boundaries, and handling conflict more skillfully
Cognitive-behavioral therapy
Cognitive-behavioral therapy (CBT) helps teens notice unhelpful thought patterns, test them against evidence, and practice different behaviors. Treatment can also build problem-solving, communication, and coping skills for moments when self-harm urges rise.
Trauma-focused treatment
When trauma is part of the picture, approaches such as trauma-focused CBT or eye movement desensitization and reprocessing (EMDR) may help a teen process experiences in a structured way. The right method depends on the teen’s history, symptoms, safety, and readiness. A qualified clinician can determine whether a trauma therapy program is appropriate.
Family involvement
Parents and caregivers are part of the support system. Family work can improve communication, create a practical safety plan, help adults respond consistently, and reduce conflict that may make it harder for a teen to ask for help. Treatment should never blame a teen who self-harms or their family for what they’re experiencing.
Self-harm treatment centers
Help is available, and you and your teen deserve professional support. When researching self-harm treatment centers, ask plenty of questions about program safety, how licensed clinicians address underlying mental health concerns, how family is involved, and how evaluations help teens find the right level of care.
Different programs will offer different services. Some things, though, should be non-negotiable:
- Licensed clinicians with experience serving children and adolescents
- Evidence-based approaches such as DBT and CBT, selected for the individual youth
- Family involvement, safety planning, and clear communication with caregivers
- Developmentally appropriate care and a level-of-care assessment
- Planning for school, home, outpatient follow-up, and continued support after discharge
HillsidesCares serves youth ages 6–17 in Pasadena and the greater Los Angeles area. Multiple levels of care are available, including residential care, partial hospitalization, intensive outpatient care, outpatient services, and aftercare. Our team of licensed professionals uses trauma-informed, family-centered treatment and evidence-based therapies, with the level of care based on each youth’s clinical needs.
Contact HillsidesCares to discuss your specific concerns and learn what next step may fit your family.
When to get professional help
Self-harm always deserves attention, but professional help is especially important when:
- The behavior becomes frequent or severe
- There are signs of suicidal thoughts
- It co-occurs with depression, anxiety, or PTSD
- A teen is unable to stop on their own
At HillsidesCares, our trauma-informed programs are designed specifically for teens struggling with self-harm. Our licensed clinicians work closely with families to create individualized treatment plans that support long-term healing.
For immediate 24/7 crisis support, call or text 988 the Suicide & Crisis Lifeline or visit https://988lifeline.org.
If you’re concerned about your child, reaching out to a licensed mental health professional is a critical step. HillsidesCares offers compassionate, trauma-informed care that supports teens and their families.
FAQs about self-harm and trauma
Is self-harm the same as a suicide attempt?
No. Self-harm is typically not intended to end life, but it does increase the risk of a future attempt and should always be taken seriously.
Can a teen self-harm even if they haven’t experienced major trauma?
Yes. While trauma is a major factor, emotional distress, mental health conditions, or environmental stress can also contribute.
Why does self-harm sometimes feel relieving?
It can temporarily release emotional tension or trigger endorphins, creating short-term relief.
Is self-harm becoming more common in teens?
Rates of self-harm have increased in recent years, particularly among adolescents facing increased stress and mental health challenges.
What are healthy alternatives to self-harm for teens?
Health alternatives to self-harm include journaling, grounding exercises, physical activity, creative expression, or talking to a trusted adult.
Can social media influence self-harm behaviors?
Yes. Exposure to social media can normalize or reinforce self-harm behaviors, especially in vulnerable teens.
How should I talk to a teen about self-harm?
Approach with empathy, avoid judgment, and focus on listening rather than fixing.
Can self-harm become addictive?
Yes. The temporary relief can reinforce the behavior, making it harder to stop without support.
What should I do if I discover my teen is self-harming?
Stay calm, express concern, and seek professional help as soon as possible.
Are there long-term effects of self-harm?
Yes, long-term effects can include physical scarring and ongoing mental health challenges if untreated.
Can therapy really help teens stop self-harming?
Absolutely. Evidence-based therapies are highly effective when consistently applied.
How long does it take to recover from self-harm?
Recovery time varies, but with the right support, teens can learn healthier coping strategies and heal over time.
Why do teens engage in self-harm?
Teens may self-harm to reduce overwhelming emotion, interrupt numbness, express pain, punish themselves, or regain a sense of control.
What increases a teenager's risk of self-harm?
Risk factors include depression, trauma, anxiety, peer victimization, isolation, family conflict, exposure to self-harm, substance use, and difficulty regulating emotion.
How can parents recognize warning signs of self-harm?
Watch for unexplained injuries, covering the body in hot weather, withdrawal/isolation, hidden sharp objects or lighters, sleep or appetite changes, mood shifts, and expressions of shame or hopelessness.
What role does substance use play in self-harm risk?
Substance use and NSSI are associated in adolescent research, but one does not prove or necessarily cause the other. Both may be connected to distress, impulsivity, or co-occurring mental health concerns.
Self-harm support at HillsidesCares
A teen who self-harms needs safety, understanding, and skills that make difficult moments more manageable. HillsidesCares provides trauma-informed, evidence-based mental health care for youth ages 6–17, including specialized self-harm resources that address your child’s unique needs.
If you’re concerned about your child, contact HillsidesCares to talk through your concerns and learn whether an assessment or program may be appropriate.
Sources:
- Frontiers in Public Health, Relationships among self-esteem, depression and self-injury in adolescents: a longitudinal study, Accessed September 2026.
- Journal of Youth and Adolescence, Substance Use and Non-Suicidal Self-Injury among Adolescents: A Meta-Analysis of Association Patterns and Moderating Factors, Accessed September 2026.
Clinical Reviewer
