Self-Harm in Teenagers: How to Recognise It and Support Your Child

Understanding Self-Harm

Discovering that your teenager is self-harming is one of the most frightening and distressing things a parent can face. It is natural to feel a rush of fear, confusion, guilt, and even anger. Understanding what self-harm actually is, and why young people do it, is the first step toward being able to help effectively.

Self-harm, sometimes called non-suicidal self-injury (NSSI), refers to deliberate harm to one's own body without the intention of ending one's life. The most common forms include cutting, scratching, burning, hitting, or bruising. It can also include hair-pulling, picking at wounds to prevent healing, or other forms of self-inflicted pain.

Self-harm is not, in most cases, a suicide attempt. Most young people who self-harm are doing so as a way of managing overwhelming emotional pain, not as an attempt to die. This distinction is important and does not minimise the seriousness of what is happening, but it shapes how you respond.

Why Young People Self-Harm

Self-harm typically functions as an emotional regulation strategy. For some young people, physical pain provides a sense of relief from overwhelming emotional pain that feels impossible to bear or express. For others, it creates a sense of feeling real when emotional numbness has made them feel disconnected from themselves. For others still, it is a form of self-punishment rooted in deep shame or self-blame.

Common underlying factors include:

• Depression or anxiety
• Experiences of trauma, abuse, or neglect
• Bullying, including cyberbullying
• Difficulties with identity, including around gender or sexual orientation
• Family difficulties or conflict
• Academic pressure and perfectionism
• Social isolation
• Eating disorders or other mental health conditions

Self-harm is also sometimes a contagion behaviour: exposure to self-harm among peers or in online communities can increase the likelihood in vulnerable young people. This is why some online spaces focused on self-harm content are considered harmful, and why discussions of self-harm in school or media contexts are handled with great care.

Warning Signs to Look For

Many young people who self-harm are deeply ashamed of it and go to significant lengths to conceal it. Signs that may indicate self-harm:

• Unexplained cuts, burns, bruises, or scars, often on the inner wrists, upper arms, thighs, or stomach (areas typically covered by clothing)
• Wearing long sleeves or trousers even in hot weather
• Withdrawal and increased isolation
• Finding blood stains on clothing or bedding
• Sharp objects such as razors or blades in their possession or room
• Significant emotional changes, particularly expressions of worthlessness or being a burden
• Flinching when touched on certain areas of the body

How to Respond If You Discover Your Child Is Self-Harming

Your initial response matters enormously. How you react in the first conversation can determine whether your child feels safe enough to continue talking to you or whether they shut down completely.

Try to:

• Stay calm. This is deeply hard when you are frightened, but visible panic, anger, or tears can feel like punishment to a teenager who is already overwhelmed by shame. Take a breath before you speak.
• Express concern, not judgment. Focus on how worried you are about them rather than what they have done. Words like I love you and I want to understand go much further than expressions of shock or disapproval.
• Listen more than you speak. Ask how they are feeling and what has been happening for them. Do not rush to solutions or to stopping the behaviour immediately: the relationship comes first.
• Acknowledge their pain. Whatever has led your child to self-harm, they are in significant distress. Validating that their feelings are real and that you take them seriously is essential.
• Avoid ultimatums. Threatening punishment or demanding they stop immediately is likely to drive the behaviour underground rather than end it. The goal is to address the underlying pain, not just the symptom.

What to avoid:

• Reacting with anger or disgust at the self-harm
• Minimising: it's just attention-seeking, teenagers do this
• Making promises you cannot keep: just tell me and I won't do anything about it
• Leaving them alone with the information while you process it

Getting Professional Help

Self-harm is a sign that your child needs more support than they are currently getting. Seeking professional help is not an admission of failure: it is the right response.

Start by visiting your family doctor or GP, who can carry out an initial assessment and refer your child to child and adolescent mental health services (CAMHS) or their equivalent in your country. If your child is in immediate danger or has inflicted a serious injury, go to the nearest emergency department or call emergency services.

In the meantime, try to reduce access to means: remove or secure sharp objects, razors, and other items used for self-harm where possible without creating conflict. This is a harm-reduction step, not a cure, but it can reduce the severity of incidents while help is sought.

Supporting Your Child Through Recovery

Recovery from self-harm is usually a gradual process. There may be setbacks. The goal of professional treatment is generally not just to stop the self-harm but to address the underlying emotional difficulties and develop healthier coping strategies.

Your role as a parent during this time is to:

• Maintain warm, consistent connection with your child
• Follow the guidance of mental health professionals
• Be patient with a process that takes time
• Look after your own emotional health. Parenting a self-harming child is exhausting and frightening. Seek your own support from a professional, partner, or trusted friends so you have the resources to be present for your child.

Looking After Yourself

Parents of young people who self-harm often carry enormous guilt, fear, and helplessness. These feelings are understandable and human. Many find it helpful to speak with a therapist or counsellor themselves, not just to manage their own distress but to be better equipped to support their child. You cannot pour from an empty vessel: your own wellbeing matters too.