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Published on: 8/20/2026

What types of self injury behavior are there?

Self-injurious behavior (SIB) refers to intentional actions people take to harm their own bodies, often as a way to cope with overwhelming emotions, express inner pain, or regain a sense of control. Understanding the main types of self-injury is an important first step toward recognizing warning signs and seeking help.

Common types of self-injurious behavior include:

  • Cutting or scratching the skin with sharp objects
  • Burning the skin with heat, friction, or chemicals
  • Hitting or bruising oneself, including punching walls
  • Interfering with wound healing by picking at scabs or reopening injuries
  • Hair pulling (trichotillomania)
  • Head banging against hard surfaces
  • Biting the skin to the point of injury
  • Inserting objects under the skin or into the body

These behaviors can affect people of any age and are often linked to underlying emotional or mental health concerns. If you or someone you know is experiencing these behaviors—or unusual symptoms you can't explain—it's worth getting clarity quickly. A free, private, AI-powered symptom check takes just a few minutes and can help you understand what may be going on and guide your next steps toward appropriate care. Knowledge is the first step toward healing—start there.

Reviewed for medical accuracy: 07/15/2026

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Explanation

1. Direct Self-Injury

Direct self-injury refers to behaviors where individuals intentionally harm themselves. This can include:

  • Cutting: Using sharp objects to make cuts on the skin, often on the arms, legs, or abdomen.
  • Burning: Applying heat or flames to the skin to create burns.
  • Scratching: Repeatedly scratching the skin to the point of injury.
  • Banging or Hitting: Striking oneself against hard surfaces or using objects to inflict pain.
  • Hair Pulling: Pulling out hair from the scalp, eyebrows, or other areas (trichotillomania).

2. Indirect Self-Injury

Indirect self-injury involves behaviors that may not cause immediate physical harm but can lead to long-term damage or health risks. Examples include:

  • Substance Abuse: Using drugs or alcohol excessively as a form of self-harm or coping mechanism.
  • Risky Behaviors: Engaging in dangerous activities, such as reckless driving or unsafe sexual practices, that can lead to injury or harm.
  • Neglecting Health: Failing to care for one's physical health, such as not eating properly, avoiding medical care, or engaging in self-destructive behaviors.

3. Non-Suicidal Self-Injury (NSSI)

Non-suicidal self-injury is a specific category of self-injury where the intent is not to end one's life but to cope with emotional pain or distress. This behavior is often used as a way to express feelings, relieve tension, or gain a sense of control. It is important to distinguish NSSI from suicidal behavior, as the motivations and outcomes can differ significantly.

Understanding the Motivations

Individuals may engage in self-injurious behaviors for various reasons, including:

  • Emotional Regulation: To cope with overwhelming emotions, such as sadness, anger, or anxiety.
  • Expression of Feelings: To express feelings that are difficult to verbalize.
  • Control: To exert control over one's body when feeling powerless in other areas of life.
  • Relief from Tension: To relieve emotional tension or numbness.

If you're experiencing concerning physical or emotional symptoms related to self-injury, consider using a free symptom checker to help understand what you might be experiencing and when to seek professional support.

(References)

  • Rao KN, Sudarshan CY, Begum S. Self-injurious behavior: A clinical appraisal. Indian J Psychiatry. 2008 Oct;50(4):288-97. doi: 10.4103/0019-5545.44754. PMID: 19823617; PMCID: PMC2755147.

  • St Germain SA, Hooley JM. Direct and indirect forms of non-suicidal self-injury: evidence for a distinction. Psychiatry Res. 2012 May 15;197(1-2):78-84. doi: 10.1016/j.psychres.2011.12.050. Epub 2012 Mar 9. PMID: 22406394.

  • Klonsky ED, Victor SE, Saffer BY. Nonsuicidal self-injury: what we know, and what we need to know. Can J Psychiatry. 2014 Nov;59(11):565-8. doi: 10.1177/070674371405901101. PMID: 25565471; PMCID: PMC4244874.

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