Non-Suicidal Self-Injury (NSSI) in Teens: A Guide for Schools

If a student is in immediate medical danger or talking about ending their life, call 911, the 988 Suicide & Crisis Lifeline, or the Georgia Crisis & Access Line at 1-800-715-4225, and follow your district's threat-assessment protocol.

Quick answer: Non-suicidal self-injury (NSSI) is the intentional, self-inflicted destruction of body tissue without suicidal intent — most often to manage overwhelming emotion, not to die. Roughly 17–18% of U.S. adolescents report engaging in NSSI at least once. Schools that handle disclosures well coordinate a same-day clinical referral, loop in family, and avoid isolated counseling-only responses.

The administrator's situation#

A teacher pulls a counselor aside after fourth period. A student has been wearing long sleeves through a Georgia heat wave, and the gym teacher just saw fresh cuts on her forearm. The student is not suicidal — she says so herself — but the marks are real, and the counselor's calendar is already full.

This scenario plays out in every district in Georgia, multiple times each semester. What your school does in the next 24 hours shapes the student's clinical trajectory, your district's HB 268 compliance posture, and the family's trust in your team.

This guide explains what NSSI is, how to recognize it, what the research says works, and how schools should coordinate with clinical providers — without turning the counselor's office into a long-term therapy room.

What NSSI is — and what it is not#

Non-suicidal self-injury (NSSI) is the deliberate destruction of one's own body tissue, in a way that is socially unsanctioned, without conscious suicidal intent. The DSM-5 lists NSSI Disorder as a Condition for Further Study, with proposed criteria including self-injury on five or more days in the past year, performed with the expectation of relief from negative feelings, resolution of an interpersonal difficulty, or induction of a positive feeling state.

The most common methods reported by teens are cutting, burning, scratching deep enough to draw blood, and self-hitting. Lifetime prevalence estimates from peer-reviewed studies converge around 17–18% of U.S. adolescents, with higher rates among girls, LGBTQ+ youth, and students with co-occurring depression or trauma histories (Swannell et al., Suicide and Life-Threatening Behavior, 2014).

Here is the part that catches educators off guard. NSSI is not a "failed suicide attempt." Researchers led by Harvard psychologist Matthew Nock have shown for two decades that the function of NSSI is typically emotion regulation — the teen is trying to feel less, not to die (Nock, Annual Review of Clinical Psychology, 2010).

But — and this is the part that should make every administrator lean in — NSSI is one of the strongest known predictors of future suicide attempts in adolescents. A history of NSSI roughly triples the risk of a later attempt, independent of depression severity (Ribeiro et al., Psychological Medicine, 2016).

So NSSI is not a suicide attempt today. But ignoring it makes a suicide attempt tomorrow more likely. That is the tension your team needs a protocol for.

Prefer audio? This article is also a podcast episode on the MentalSpace School podcast. Subscribe on Apple Podcasts / Spotify / your favorite platform — episodes drop three times a day and cover school mental health, compliance, and clinician practice.

Warning signs school staff actually see#

Most NSSI is hidden. Students who self-injure typically feel deep shame, and they become skilled at concealment. The teacher who reports a concern is usually noticing the secondary signs, not the wounds themselves.

Here is what staff should be trained to recognize — and to report up without trying to diagnose.

• Unexplained injuries that don't match the student's story ("I scratched it on a desk") or that appear repeatedly in the same area
• Long sleeves, hoodies, or wristbands in hot weather — Georgia summers make this especially noticeable
• Avoidance of locker rooms, swimming, PE undress, or school nurse visits that require exposed skin
• Sharp objects in unusual places — razor blades, pencil sharpener pieces, or paperclips in a backpack or desk
• Sudden withdrawal, mood drops, or a flat affect following an interpersonal conflict, social-media incident, or family event
• Friends asking questions on the student's behalf ("What would you do if someone you knew was hurting themselves?")
• Searches in school-issued devices for terms like "how to hide cuts" or specific self-injury communities — flagged through your district's content-filtering platform

None of these alone confirms NSSI. Together, or paired with a direct disclosure from a peer, they should trigger your referral protocol.

What the research says works#

The two interventions with the strongest randomized-controlled-trial evidence for adolescent NSSI are both outpatient clinical treatments — not school-based counseling alone.

Dialectical Behavior Therapy for Adolescents (DBT-A)

Dialectical Behavior Therapy adapted for adolescents (DBT-A) is the gold-standard intervention. It teaches four skill modules — mindfulness, distress tolerance, emotion regulation, and interpersonal effectiveness — and includes a parallel multi-family skills group. Multiple RCTs show DBT-A reduces self-harm episodes and suicidal ideation more than treatment as usual, with effects holding at one-year follow-up (McCauley et al., JAMA Psychiatry, 2018).

Mentalization-Based Therapy for Adolescents (MBT-A)

Mentalization-Based Therapy for Adolescents (MBT-A) helps teens recognize and reflect on their own and others' mental states, reducing the impulsive emotional reactivity that often precedes NSSI. A 2012 RCT in the Journal of the American Academy of Child & Adolescent Psychiatry showed MBT-A produced larger reductions in self-harm at 12 months than supportive therapy (Rossouw & Fonagy, JAACAP, 2012).

Family involvement is non-negotiable

Across both evidence-based models, family involvement is essential. The teen's emotion-regulation environment is the family system. Treatment that excludes parents, in nearly every controlled trial, underperforms treatment that includes them.

This matters for schools. A counselor who tries to manage NSSI alone — without a clinical referral, without family contact, without a treatment team — is outside the standard of care the research supports. That is true even when the counselor is licensed and well-meaning.

Our team dove deeper into this on YouTube. Watch the 10-15-minute episode for the discussion, examples, and Q&A that didn't fit in this article — closed captions and transcript included.

The school's role: bridge, not destination#

The school is the bridge to clinical care, not the clinical destination. That single sentence resolves most of the confusion educators have about NSSI response.

A strong school protocol does five things, in this order:

1. Assess immediate safety. A trained staff member (counselor, nurse, school psychologist, or contracted clinician) confirms the student is medically stable and screens explicitly for suicidal ideation. The 988 Lifeline or Georgia Crisis & Access Line (1-800-715-4225) is contacted if any active suicide risk surfaces.
2. Contact the family the same day. Under FERPA, school officials may share information with parents about a health or safety emergency. NSSI qualifies. Coordinate the call with your principal and document the contact.
3. Refer to outpatient clinical care. Provide the family with a curated list of local providers who offer DBT-A or MBT-A — or, if your district contracts with MentalSpace School, hand off directly to our on-site clinician or teletherapy team.
4. Build a return-to-school plan. When the student is stabilized, the counselor coordinates a brief safety plan with the treating clinician, identifies a trusted adult on campus, and adjusts non-essential stressors (extensions, alternate PE participation) for a defined window.
5. Avoid isolated, ongoing counseling sessions as the primary intervention. This is the most common school misstep. Recurring 30-minute check-ins with the school counselor feel responsive but are not a treatment. They can also delay families from seeking the outpatient care the evidence supports.

For Georgia districts, NSSI disclosure also intersects with HB 268 and your behavioral threat-assessment infrastructure. NSSI alone does not require a threat assessment — but co-occurring suicidal ideation, communicated threats toward self or others, or social-media posts about self-harm do. Document the screening, the family contact, and the referral in your HB 268 records.

Practical playbook for this term#

1. Train every adult on campus — not just counselors — on the seven warning signs above. Reporting up is the only job; diagnosing is not.
2. Publish a one-page NSSI response flowchart for your counselors and nurses. Include the 988 Lifeline, Georgia Crisis & Access Line, and your district's threat-assessment trigger thresholds.
3. Pre-vet a local provider list — including DBT-A providers within a 30-mile radius or via teletherapy — so families are not handed a Google search at their worst moment.
4. Audit your access kit and mental-health-kit deployment to ensure every campus has same-day clinical screening capacity, not just SEL curriculum.
5. Brief your school board annually with de-identified, aggregate NSSI referral and outcome data. Boards fund what they understand.

Frequently Asked Questions#

Is NSSI a suicide attempt?

No. Non-suicidal self-injury is defined by the absence of suicidal intent — most teens self-injure to regulate overwhelming emotion, not to die. However, a history of NSSI is one of the strongest known predictors of later suicide attempts, so every disclosure warrants a same-day clinical screening for suicide risk, regardless of how the student initially presents.

Are we required to tell parents if a student is self-injuring?

In nearly all cases, yes. FERPA permits — and ethical school practice requires — disclosure to parents in a health or safety situation, which NSSI qualifies as. Document the contact, the time, and what was shared. Consult your district's general counsel for edge cases involving suspected abuse, custody disputes, or mature-minor mental-health-treatment statutes.

Should the school counselor be the student's therapist?

No. The school counselor's role is screening, safety planning, and bridging to outpatient care — not delivering the treatment itself. The research-supported interventions for NSSI (DBT-A and MBT-A) require trained outpatient clinicians, weekly skills work, and family involvement. Recurring school-counselor sessions as the primary intervention falls outside the standard of care.

What does HB 268 require if a student discloses NSSI?

HB 268 does not specifically name NSSI, but its behavioral threat-assessment framework activates whenever suicidal ideation, threats, or violence concerns surface. If NSSI is the only concern, follow your mental-health response protocol. If suicidal ideation or threats co-occur, document the screening, convene the threat-assessment team, and retain records per HB 268 timelines.

How common is NSSI in Georgia middle and high schools?

National lifetime prevalence sits at roughly 17–18% of adolescents based on peer-reviewed meta-analyses, and Georgia rates track the national pattern. CDC Youth Risk Behavior Survey data shows rising self-harm and suicidal-ideation indicators since 2011, with the steepest increases among adolescent girls. Practically: every high school in Georgia has students who self-injure, whether disclosed or not.

What should I do right now if a student tells me they self-injure?

Stay calm, thank them for telling you, and avoid promising secrecy. Walk them to your counselor, school nurse, or on-site clinician the same period. The trained staff member will screen for suicide risk, contact the family, and coordinate a referral. If the student is in medical danger or expressing suicidal intent, call 911 or 988 immediately.

How MentalSpace School helps Georgia districts#

MentalSpace School partners with public and private K-12 schools across Georgia to build the exact infrastructure this article describes. Our on-site clinicians screen, refer, and bridge to outpatient care for NSSI and other complex presentations — without pulling your counselors off their caseload. Our teletherapy services extend DBT- and MBT-informed care to students whose families need same-week access. Our mental health kits equip every campus with screening protocols, response flowcharts, and parent communication templates aligned to FERPA and HB 268.

Districts that work with us also get HB 268 compliance support — documentation standards, threat-assessment-team training, and aggregate reporting your board can act on. If you are building or auditing your NSSI response this semester, our team can help. Request a demo or refer a student — and explore our HB 268 compliance hub, on-site clinician program, and teletherapy services.

The goal is simple. When a teacher pulls a counselor aside about a student wearing long sleeves in May, your district already knows what to do, who to call, and what to document. That is what good non-suicidal self-injury response in Georgia schools looks like.

References#

• Swannell, S. V., Martin, G. E., Page, A., Hasking, P., & St John, N. J. (2014). Prevalence of nonsuicidal self-injury in nonclinical samples: Systematic review, meta-analysis and meta-regression. Suicide and Life-Threatening Behavior, 44(3), 273–303.
• Nock, M. K. (2010). Self-injury. Annual Review of Clinical Psychology, 6, 339–363.
• Ribeiro, J. D., Franklin, J. C., Fox, K. R., Bentley, K. H., Kleiman, E. M., Chang, B. P., & Nock, M. K. (2016). Self-injurious thoughts and behaviors as risk factors for future suicide ideation, attempts, and death. Psychological Medicine, 46(2), 225–236.
• McCauley, E., Berk, M. S., Asarnow, J. R., et al. (2018). Efficacy of dialectical behavior therapy for adolescents at high risk for suicide: A randomized clinical trial. JAMA Psychiatry, 75(8), 777–785.
• Rossouw, T. I., & Fonagy, P. (2012). Mentalization-based treatment for self-harm in adolescents: A randomized controlled trial. Journal of the American Academy of Child & Adolescent Psychiatry, 51(12), 1304–1313.
• Centers for Disease Control and Prevention. (2023). Youth Risk Behavior Survey Data Summary & Trends Report. U.S. Department of Health and Human Services.

Reviewed by the MentalSpace School clinical team. Last updated: May 15, 2026.