A suicide attempt is when someone harms themselves with any intent to end their life but does not die as a result. That definition, used by the CDC and most clinical frameworks, hinges on one key element: intent. The method doesn’t have to be medically dangerous, and the person doesn’t have to be injured at all. What matters is whether, in that moment, they wanted to die.
This distinction matters because it shapes how the behavior is understood, how risk is assessed going forward, and what kind of support is offered. In 2024, an estimated 2.2 million people in the United States reported making a suicide attempt, while 49,246 people died by suicide in 2023. The vast majority of people who attempt suicide survive.
Intent Is the Defining Factor
The single most important element in classifying a suicide attempt is intent to die. A person who takes a handful of pills believing it will kill them has made a suicide attempt, even if the pills were medically harmless. Conversely, someone who engages in dangerous behavior without wanting to die, like cutting or burning themselves to cope with emotional pain, is typically classified differently (as non-suicidal self-injury, discussed below). Clinicians evaluating someone after a self-harm event will ask direct questions: “Did you want to die?” and “Did you think this would kill you?” The answers to those questions carry as much weight as the physical severity of what happened.
This means intent and medical danger don’t always match up. A person may use a method they genuinely believed was lethal, even if it posed little actual risk. That still counts as an attempt. On the other hand, someone might engage in objectively dangerous behavior, like reckless driving, without any conscious wish to die. That would not typically be classified as an attempt, though it might raise other concerns.
Types of Suicidal Behavior
Not every suicidal behavior fits neatly into one category. The Columbia Suicide Severity Rating Scale, which the FDA has adopted as its standard classification system, breaks suicidal behavior into five distinct categories that capture the full range of what can happen.
- Preparatory acts or behavior: Taking concrete steps toward an attempt, such as gathering materials or writing a note, without carrying out the act itself.
- Aborted attempt: A person reaches the point of attempting suicide, is one step away from acting, but stops themselves before any injury occurs. The key features are that they intended to die, changed their mind at the last moment, and sustained no physical harm.
- Interrupted attempt: A person begins to act on suicidal intent but is stopped by an outside force, whether another person intervening, a phone ringing, or some other external interruption.
- Actual attempt (non-fatal): A person engages in self-injurious behavior with at least some intent to die and survives.
- Completed suicide: A self-injurious act with intent to die that results in death.
All five of these are considered suicidal behaviors. This means that even if someone stopped themselves before being hurt, or was interrupted by a friend walking in, clinicians treat the event seriously. The presence of intent, combined with action or near-action, is enough.
How It Differs From Self-Harm Without Suicidal Intent
Non-suicidal self-injury, or NSSI, is the deliberate destruction of body tissue without any intent to die. People who self-harm in this way are typically trying to manage overwhelming emotions, feel something when they feel numb, or express pain they can’t put into words. The behavior is serious and worth addressing, but it sits in a different category from a suicide attempt because the underlying motivation is different.
In practice, though, the line between the two is not always clear. Research published in Frontiers in Psychiatry found that no single factor, and no combination of factors, can reliably separate people who engage in non-suicidal self-injury from those who attempt suicide. The differences between the two groups are complex rather than straightforward. Some people who self-harm without suicidal intent go on to attempt suicide later. Others experience ambivalent moments where they aren’t sure whether they want to die. Clinicians recognize this complexity, which is why any form of self-harm is taken seriously regardless of the stated intent.
Why a Previous Attempt Matters
A prior suicide attempt is one of the strongest predictors of future suicidal behavior. Research tracked by Harvard’s T.H. Chan School of Public Health shows that approximately 7% of people treated in a hospital for a suicide attempt eventually die by suicide, with estimates ranging from 5% to 11% across studies. To put that in perspective, the annual suicide rate in the general population is roughly 1 in 10,000. One study found that 1 in 25 people who present to a hospital for self-harm will die by suicide within the next five years.
These numbers highlight two things at once. First, a previous attempt significantly raises future risk, which is why it’s one of the first things clinicians ask about during any mental health assessment. Second, the large majority of people who attempt suicide do not go on to die by suicide. Survival is far more common than not, and many people who attempt suicide go on to report that they no longer wish to die, particularly when they receive ongoing support.
How Attempts Are Assessed
When someone arrives at a hospital or discloses a suicide attempt to a clinician, the evaluation focuses on several dimensions beyond just what happened physically. Providers ask about the method used, when it happened, and the reasoning behind it. They ask whether the person believed the method would be fatal and whether they wanted to die. These questions about subjective intent are considered just as important as the objective medical severity of the act.
This approach exists because medical lethality alone is a poor measure of suicidal intent. Someone who takes a small number of over-the-counter pills, genuinely believing it will end their life, is at serious risk even though the physical danger was low. Their intent reveals something important about their state of mind. Similarly, someone who survives a highly lethal method may have acted impulsively during a brief crisis rather than after sustained planning. Both situations warrant careful evaluation, but they may call for different kinds of follow-up.
Clinicians also assess for prior attempts, current suicidal thoughts, whether the person has a plan, and whether they have access to means they could use. The goal is to build a full picture of risk rather than making a judgment based on any single factor.
The Role of Ambivalence
Many suicide attempts happen during moments of deep ambivalence. The person may simultaneously want to die and want the pain to stop, without clearly distinguishing between the two. Some people describe wanting to escape their situation rather than wanting death specifically. Others report making an attempt impulsively, within minutes of the idea first entering their mind, rather than after prolonged planning.
This is part of why the clinical definition uses the phrase “at least some intent to die.” It doesn’t require that the person was 100% certain they wanted to end their life. Even partial, mixed, or fleeting intent is enough to classify the behavior as a suicide attempt. This threshold exists because ambivalent attempts carry real risk. The outcome of an attempt often depends on factors outside the person’s control, like whether someone finds them in time or whether the method happens to be more dangerous than they realized.