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A teenager in a long-sleeved jumper sitting by a bedroom window in soft daylight, a parent standing quietly in the doorway

When a Teenager Self-Harms

Self-harm is almost never about wanting to die. It is a way of coping that has to be replaced, not simply removed.

Written by Sian Trombley · BEd, MACP, CCC

Clinically reviewedLast reviewed 31 July 2026
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You find the marks, or a message, or a friend's parent calls. In that instant, every parent has the same two thoughts: how long has this been happening, and how did I not know. Both are natural. Neither is useful in the conversation that comes next.

Self-harm is more common than most families realise, and it is frequently misunderstood. For the majority of young people it is not an attempt to end their life. It is a way of making an intolerable internal state briefly tolerable — a release valve for feelings they do not yet have words or skills for.

Why young people do it

  • To reduce overwhelming emotion — the most common reason by far
  • To feel something when they feel numb or unreal
  • To punish themselves when shame is running the show
  • To make invisible pain visible when words have failed
  • To exert control in a life that feels uncontrollable

The first conversation

  1. 01
    Lower the temperature before you speak

    Take an hour if you need it. What your child registers is your face, not your words. Fear reads as anger, and anger ends disclosure.

  2. 02
    Lead with the relationship

    'I'm glad I know. You're not in trouble. Nothing about this changes how I feel about you.'

  3. 03
    Ask about the feeling, not the wound

    'What was going on for you just before?' tells you far more than questions about method, frequency or timing.

  4. 04
    Do not extract a promise

    'Promise me you'll never do it again' creates a secret the moment they slip. Ask instead: 'Will you tell me when the urge comes?'

  5. 05
    Involve professional help together

    Frame it as support, not consequence. Let them have a say in who they see and what you do or do not share.

What not to do

Looking after yourself

You cannot be steady for your child while carrying this alone. Tell one other adult. Speak to your own GP or therapist. Parents who have support recover their composure faster, and composure is the resource your teenager is actually relying on.

Children do not need a perfect parent. They need a predictable one who returns after hard moments.

Sian Trombley, Canadian Certified Counsellor

What you can try this week

Step 01

Have one low-key conversation

Choose a side-by-side moment — a drive, a walk. Say what you have noticed without interrogating: 'I love you, I'm not angry, and I want to understand.'

Step 02

Build a simple safety plan together

Write down: what the warning signs feel like, three things that help, two people to contact, and one number for out-of-hours support. Keep it on their phone.

Step 03

Add before you subtract

Introduce alternatives — cold water on the wrists, intense exercise, ice, drawing on skin — before expecting the behaviour to stop.

Key takeaways
  • Self-harm is usually about relieving unbearable feeling, not ending life.
  • Your first reaction shapes whether your teenager tells you again.
  • Removing the behaviour without replacing the coping rarely works.
  • Secrecy, shame and criticism increase risk; warmth reduces it.
  • Any self-harm warrants a professional assessment — always.
Reflection
  1. What feeling is my child trying to escape when this happens?

  2. Is our home somewhere difficult things can be said out loud?

  3. Am I managing my own fear somewhere other than in front of them?

Printable resources

Sian Trombley, BEd, MACP, CCC
Written by

Sian Trombley

Canadian Certified Counsellor · Founder of Thrive Family Co.

About Sian

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