01 · Overview
The short version
Self-harm is a behavior, not a diagnosis
It means a person hurts their own body on purpose, often to cope with numbness, anger, hopelessness, or overwhelm. It is not the same as a mental disorder, although it can happen alongside depression, trauma, eating disorders, or substance use.
Repeat injuries can become a pattern
Even when injuries seem minor, self-harm can leave scars, cause infection, and make it harder to stop. Getting help early matters because the behavior can become more dangerous over time.
Mood symptoms may be part of the picture
Feeling empty, hopeless, angry, very worried, or unable to cope can point to a broader mental health problem. Treating depression or another related condition may reduce the urge to self-harm.
Safety comes first when there is immediate danger
Call 911 or local emergency services for heavy bleeding, trouble breathing, loss of consciousness, a deep wound, poisoning, or any situation where the person cannot be kept safe. In the U.S., call or text 988 for suicidal thoughts or a mental health crisis.
02 · Care guidance
When to get help
Emergency help
- Call 911 or local emergency services now if there is heavy bleeding, trouble breathing, loss of consciousness, poisoning, a deep wound, or a severe injury that cannot wait.
- Call or text 988 right away if there are suicidal thoughts, a plan, a recent suicide attempt, or a strong fear that the person may act on self-harm urges soon.
- Do not leave the person alone if you think they may hurt themselves in the next few minutes or hours.
Get advice promptly
- Contact a clinician, therapist, school counselor, or urgent mental health service promptly if self-harm has happened more than once, the urge is getting stronger, alcohol or drugs are being used to cope, or depression, trauma, or an eating disorder may be involved.
- Seek medical care soon for wounds that are red, warm, swollen, draining, gaping, painful, or not healing, even if the self-harm itself was hidden.
- Ask for help soon if the person is withdrawing, covering injuries, making excuses for them, or struggling in school or work.
If there is no immediate danger, the next step is a support plan. That can include a primary care visit, therapy, a crisis plan, and help from a trusted adult, partner, family member, or school counselor. A visit matters because it gives the clinician a chance to check safety, look for related conditions, and connect the person with the right level of care.
03 · Self-Harm
What self-harm means in everyday terms
Self-harm is deliberate injury used as a coping method, and it should be taken seriously even when the person says they are not trying to die.
Self-harm, or self-injury, means a person hurts their own body on purpose. The injuries may be minor or severe. Examples include cutting, burning, punching oneself or objects, or other actions that damage the body.
This is not a mental disorder by itself. It is a behavior. Some people who self-harm do have a mental disorder, but the behavior can also appear with strong stress, painful memories, low self-esteem, or a hard time coping with feelings.
Many people who self-harm are not trying to attempt suicide. They may be trying to feel something when they feel numb, block upsetting memories, release intense anger or hopelessness, show that they need help, or regain a sense of control. Even so, the behavior raises suicide risk, so it should never be brushed off.
- It can start in the teen or early adult years, but it can happen at any age.
- A person may hide the behavior or minimize it.
- Minor injuries can still become severe later.
04 · Self-Harm
Why the urge can show up during stress
Self-harm often begins as an attempt to handle feelings that feel too big, too painful, or too hard to name.
People may self-harm to cope with anger, loneliness, shame, grief, hopelessness, or a sense of being overwhelmed. Some say it helps them feel control. Others say it distracts them from emotional pain or helps them feel something when they feel empty or numb.
Triggers can include conflict at home, bullying, trauma reminders, a painful loss, or a strong burst of self-criticism. Alcohol or drugs can lower inhibition and make urges harder to resist.
Self-harm is more common in people with depression, eating disorders, post-traumatic stress disorder, certain personality disorders, misuse of drugs or alcohol, a history of abuse or trauma, or low self-esteem. That does not mean these conditions always lead to self-harm. It means the behavior often grows out of more than one problem at once.
- A person may not be able to explain why they did it.
- Several stressors can build at the same time.
- Treating the related condition can weaken the urge.
05 · Self-Harm
Clues that are easy to miss
Repeated patterns matter more than one injury.
Signs of self-harm can include frequent cuts, bruises, burns, or scars; wearing long sleeves or pants in hot weather; making excuses about injuries; or keeping sharp objects around for no clear reason. A person may also become more withdrawn, tense, or careful about who sees their body.
Mood changes can show up too. Feeling hopeless, empty, very angry, very worried, or unable to enjoy usual activities can point to a broader mental health problem. Trouble sleeping, changes in appetite, or a drop in school or work performance can also fit that pattern.
A single sign does not prove self-harm. But several signs together, or the same injury pattern showing up again, should prompt a closer conversation and a plan for support.
- Watch for hidden or repeated injuries.
- Look for sudden withdrawal or irritability.
- Notice changes in sleep, appetite, school, or work.
06 · Self-Harm
When this becomes urgent or an emergency
Some situations need immediate medical or crisis help, not a wait-and-see approach.
Get emergency help right away if there is heavy bleeding, trouble breathing, loss of consciousness, a deep wound, poisoning, confusion, or any injury that looks serious. Do not wait for a later appointment if the body may be in danger now.
Urgent mental health help is needed if the person says they want to die, has a plan, is giving away belongings, is saying goodbye, has recently attempted suicide, or cannot commit to staying safe. In the U.S., 988 is for suicide and mental health crisis support. Call 911 if the danger is immediate.
If the person seems likely to act on urges soon, stay with them and get help now. The safest choice is to treat that situation as an emergency.
- 911 is for immediate physical danger.
- 988 is for suicidal thoughts or a mental health crisis.
- Do not leave a person alone if safety is uncertain.
07 · Self-Harm
What treatment and support can look like
Therapy is often the main treatment, and treating the related mental health problem may reduce the urge to self-harm.
There are no medicines that directly treat self-harm as a behavior. But there are medicines for related conditions such as depression or anxiety. Treating the mental health problem may weaken the urge to self-harm.
Mental health counseling or therapy can help a person learn problem-solving skills, new ways to cope with strong emotions, better relationship skills, and ways to strengthen self-esteem. For teens, involving a parent, guardian, or another trusted adult often matters because they can help with safety and follow-through.
If the problem is severe, a psychiatric hospital or mental health day program may be needed. That is not a failure. It is a higher level of support when outpatient care is not enough to keep the person safe.
- A primary care visit can be a first step if the person does not know where to start.
- Therapy can focus on coping skills and triggers.
- Severe risk may need a day program or hospital care.
08 · Self-Harm
How to support a teen or adult who is hiding it
A calm, nonjudgmental response can make it easier for the person to accept help.
If someone tells you they are self-harming, try to stay calm and listen. Avoid blame, lecturing, or telling them to simply stop. A better first response is to say you are glad they told you and that you want to help them stay safe.
If the person is a child or teenager, ask them to talk to a trusted adult. If they will not do that, tell a trusted adult yourself. If the person is an adult, encourage mental health counseling and help them make a practical plan for the next day or two.
If there is immediate danger, stay with the person and call emergency services. If the injuries are red, warm, swollen, draining, gaping, painful, or not healing, medical care is needed even if the self-harm seems private or hidden.
- Teen support usually needs an adult involved.
- Adults may need help setting up care and safety steps.
- Wound care matters even when the injury is hidden from others.
09 · Self-Harm
Caring for injuries and watching for infection
Hidden injuries still need attention if they are painful, worsening, or not healing.
Self-harm can leave scars or cause serious health problems. Some injuries need wound care even when they seem small at first. Redness, warmth, swelling, pus, worsening pain, fever, or a wound that keeps reopening are reasons to seek medical care.
A clinician can check whether the wound needs treatment and whether there is another health issue that should be addressed. They can also talk through the bigger safety picture, since repeated injuries may mean the person still needs more support.
The important point is not to hide the problem. The injury and the urge behind it both deserve attention.
- Watch for infection signs.
- Do not ignore wounds that are gaping or painful.
- Scars can be a sign that support is still needed.
10 · FAQ
Questions people ask
Does self-harm always mean depression is present?
No. Self-harm can happen with depression, but it can also show up with trauma, eating disorders, substance use, or intense stress. A mental health check is still important because mood symptoms, sleep changes, or hopelessness may point to a treatable problem.
Can a school counselor be the first person to tell?
Yes. For a teen, a school counselor can be a practical first step, especially if home support is hard to get right away. If there is immediate danger or suicidal thoughts, emergency help still comes first.
What if the person says they are fine and refuses help?
Refusal does not erase the risk. Keep the conversation calm, ask about immediate safety if you are worried, and involve a trusted adult, clinician, or crisis service when needed. If there is a real chance of self-harm or suicide soon, use emergency help.
Do scars mean the self-harm is over?
Not necessarily. Scars show there has been injury in the past, but they do not tell you whether the urge is gone now. If new injuries are still happening, the person likely needs more support, not just scar care.
Is it okay to remove sharp objects from someone’s room?
If it can be done safely, reducing access to items that could be used for self-injury may help. The key is to do this as part of a broader safety plan, not as a secret punishment. If safety feels uncertain, involve a trusted adult or clinician.
Can therapy help even if the person has been self-harming for years?
Yes. Therapy can still help by teaching better ways to handle strong emotions, triggers, and relationship stress. The pattern may take time to change, but long-standing self-harm is still treatable and worth bringing up.
11 · References
References and supporting evidence
These sources support the points identified below. Source checking is not clinical approval.
- S1: Self-HarmMedlinePlus / U.S. National Library of Medicine
Explains the basic meaning of self-harm as intentional injury. Explains one common reason people may self-harm when feeling numb or empty. Explains the age pattern mentioned in the guide. Explains common warning signs that can suggest a hidden self-harm pattern. Explains why self-harm must be taken seriously even when suicide is not the stated goal. Explains that medicine is not a direct treatment for the behavior itself. Explains how therapy can help reduce self-harm urges and build coping skills.
- S2: Teen DepressionMedlinePlus / U.S. National Library of Medicine
Explains that suicidal thinking can be part of teen depression and is relevant to urgent triage. Explains the need for caution and monitoring around antidepressants in teens. Explains the correction that prescribed antidepressants should not be stopped suddenly without guidance.
- S3: Teen Mental HealthMedlinePlus / U.S. National Library of Medicine
Explains mood changes that can accompany self-harm and signal a broader mental health issue. Explains a practical starting point for getting support, especially for teens.
General information, not a diagnosis. This guide is not a substitute for care from a qualified healthcare professional. For an emergency, call 911 in the US or your local emergency number. Illustrations are conceptual and are not diagnostic images.