Acute Stress Disorder Symptoms

Symptoms of acute stress disorder impact all areas of life. Learn about the symptoms and effects of acute stress disorder on

Symptoms of acute stress disorder are typically severe and disruptive, as acute stress disorder is a reaction to a traumatic event that impacts all areas of someone’s life (Traumatic Events and How to Cope).

Symptoms of acute stress disorder can be:

  • Physiological; the sympathetic nervous system is activated, increasing heart rate and blood pressure as well as constricting blood vessels in order to prepare the person for fight or flight
  • Behavioral changes
  • Subjective; the person’s thoughts and emotions change

DSM-5 Categories of Acute Stress Disorder Symptoms

The DSM-5 delineates five categories of acute stress disorder symptoms. To receive a diagnosis of acute stress disorder following a traumatic event, someone must experience at least nine symptoms that fall into any of these five categories:

  1. Intrusion symptoms
  2. Negative mood
  3. Dissociative symptoms
  4. Avoidance symptoms
  5. Arousal symptoms

Intrusion Symptoms of Acute Stress Disorder

Intrusion symptoms of acute stress disorder impose themselves into the person’s thoughts, emotions, and/or behavior. They’re involuntary; the person isn’t trying to ruminate over what happened. Intrusion symptoms of acute stress disorder can include:

  • Repetitive, distressing memories of the traumatic event
  • Recurrent, distressing dreams/nightmares related to the event
  • Flashbacks; re-experiencing the trauma as if it were currently happening
  • Intense physiological reactions in response to triggers that remind the person of the traumatic event

Symptoms of Acute Stress Disorder Involving Negative Mood

Negative mood involves:

  • A constant inability to feel positive emotions such as happiness, joy, satisfaction, love, desire for intimacy, etc.
  • An exclusive ability to feel negative emotions such as fear, sadness, despair, anger, guilt, shame, etc.

Dissociative Symptoms of Acute Stress Disorder

Dissociation is an involuntary defense mechanism that allows someone to remove him/herself from the intensity of acute stress disorder. Dissociative symptoms of acute stress disorder involve:

  • Decreased awareness of surroundings
  • An inability to remember important aspect(s) of the trauma (dissociative amnesia)
  • Numbing
  • Depersonalization; the sense that one isn’t real/an altered sense of self
  • Derealization; the sense that surroundings aren’t real/an altered sense of the world

Avoidance Symptoms of Acute Stress Disorder

People experiencing acute distress disorder frequently avoid situations that remind them of the traumatic event or those in which they feel out of control. The avoidance includes:

  • External reminders such as people, places, activities, objects, etc.
  • Internal reminders such as memories, thoughts, feelings

Arousal Symptoms of Acute Stress Disorder

Arousal symptoms are a survival instinct, part of the fight-or-flight response. Arousal is supposed to be a protective mechanism, but in acute stress disorder, arousal is prolonged and problematic. Symptoms of acute stress disorder involving arousal include:

Effects of Acute Stress Disorder

The effects of acute stress disorder can disrupt all areas of functioning. Among the effects of acute stress disorder are:

  • Depression
  • Thoughts of suicide
  • Shame
  • Self-blame, survivor guilt
  • Distrust
  • Withdrawal
  • Absenteeism
  • Refusal to talk about the event
  • Difficulty self-soothing/turning to substance use
  • Anxiety
  • Fear of losing control or going crazy

Acute Stress Disorder Can Be A TRAP

Giarratano (2004) explains that many people feel trapped by their symptoms of acute stress disorder and uses a TRAP acronym to explain the symptoms and effects of acute stress disorder:

  • Trance; people become numb, feeling like a robot
  • Re-experience; intrusive memories and thoughts keep people stuck
  • Avoidance; people begin to avoid life
  • Physical tension; people remain in a state of heightened arousal

The symptoms of acute stress disorder can significantly reduce mental health and well-being. They are indeed a trap, but it’s possible to treat acute stress disorder and break free from this trap.

article references

APA Reference
Peterson, T. (2021, December 23). Acute Stress Disorder Symptoms, HealthyPlace. Retrieved on 2024, July 18 from

Last Updated: February 1, 2022

Medically reviewed by Harry Croft, MD

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