Survivorship: During and After Treatment

Post-traumatic Stress Disorder (PTSD) After Cancer

Anyone can feel stress after going through a scary or traumatic event. For people with cancer, these feelings can happen at any point – from the time of their diagnosis, through treatment, and even after treatment ends.

Sometimes, these feelings can become more severe and lead to other conditions such as post-traumatic stress disorder (PTSD) and acute stress disorder. PTSD is more serious, often harder to treat, and can last for years. Learn more about PTSD and other post-traumatic stress reactions, how they affect people with cancer, and where to find help and support.

What is PTSD?

PTSD is a mental health condition that can develop after a scary or life-threatening event. It most often follows events such as living through war, physical or sexual assault, abuse, or serious accidents.

Cancer can lead to PTSD in some people if they experience a traumatic event during diagnosis or treatment.

How is PTSD different than other types of traumatic stress?

There are several types of stress reactions:

  • Post-traumatic stress (PTS)
  • Acute stress disorder (ASD)
  • Post-traumatic stress disorder

PTS is a common and normal response that often gets better with time and support. People with PTS may have 1 or more symptoms that last for days to weeks, but they can still manage daily activities. People who have or had cancer may experience some level of PTS. This is sometimes called cancer-related PTS or CR-PTS. You might be experiencing PTS or CR-PTS if you feel anxious or nervous before a scan, test, or doctor’s visit.

ASD causes several physical and emotional symptoms that start within 3 to 30 days after the traumatic event and last up to 1 month. These symptoms can make daily life or relationships harder.

PTSD is more serious. It involves stronger, longer-lasting symptoms that can greatly affect your life. You might have PTSD if your symptoms start within 1 to 3 months of the traumatic event, last longer than 1 month, keep you from going to appointments or tests, and keep you from living your life.

PTSD can also increase your risk of other problems such as depression, alcohol or drug misuse, and eating disorders. It can also affect your relationships and work.

What are the symptoms of PTS, ASD, and PTSD?

Symptoms of PTS, ASD, and PTSD include:

  • Disturbing memories, nightmares, or flashbacks
  • Avoiding people, places, or activities that remind you of the trauma
  • Feeling constantly on edge, anxious, or unable to focus
  • Low mood, numbness, or difficulty connecting with others
  • Sleep problems
  • Emotional outbursts or self-harming behaviors
  • Guilt, shame, or blaming yourself for what happened

Having these symptoms doesn’t mean you have PTS, ASD, or PTSD. But if these symptoms happen every day for more than a few days, you should talk to your cancer care team or primary care provider (PCP). Ask them for a referral or if there are other resources that can help.

Not all people with cancer are at risk for PTS, ASD, and PTSD. And not all people with PTS or ASD go on to develop PTSD. There are different factors that can play a role.

Causes and triggering events

Like other types of mental distress, there is usually not one single cause of PTS, ASD, or PTSD. But there are certain times or events during cancer or cancer treatment that might be more traumatizing or triggering for you, like:

  • When you are first diagnosed or told that you have cancer
  • When you get tests, labs, or other procedures
  • When you experience physical changes or side effects related to cancer treatment
  • If you get very sick or stay in the hospital, especially the intensive care unit (ICU)
  • Before you attend follow-up appointments, tests, or scans (sometimes called “scanxiety”)

Managing your risk

You might be at greater risk of developing PTS, ASD, or PTSD if you:

  • Have a history of anxiety or depression
  • Have a history of trauma, PTS, ASD, or PTSD before cancer
  • Are diagnosed at a younger age, especially in childhood
  • Have advanced cancer at the time of your diagnosis
  • Don’t have a good support system

You can lower your risk by:

  • Having a good understanding of your cancer diagnosis
  • Talking honestly and openly with your doctor or cancer care team
  • Having a strong support system

Studies show that people who use avoidance to cope with their thoughts, feelings, and emotions are at greater risk. It’s important to build your support system and to ask for help, if needed.

988 Suicide & Crisis Lifeline

988 Suicide & Crisis Lifeline provides 24/7, free, and confidential support via phone or chat for people in distress, resources for you or your loved ones, and best practices for professionals. Includes information on finding your local crisis center.

Phone: 988

  • Interpretation for more than 240 languages
  • ASL Videophone for people who are deaf or hard of hearing

Text: 988 (English and Spanish only)

Website: http://suicidepreventionlifeline.org

To get immediate help, you can also go to the emergency department or call 911.

Treatment for PTS, ASD, and PTSD

Trauma is very different for each person, so it’s important to work with your cancer care team to create the best plan for you. Treatment should focus on helping you learn healthy ways to cope and improve your symptoms.

Most often, symptoms resolve on their own without treatment. However, talking with a therapist or counselor or taking part in support groups can help reduce symptoms.

Treatment for PTS, ASD, and PTSD works best when more than one strategy is used. Common treatments include:

There are many different types of psychotherapy. Common types used to treat PTS, ASD and PTSD include:

  • Cognitive behavioral therapy (CBT) or trauma-focused CBT: Helps you decrease avoidance and increase processing your feelings. In people with ASD, CBT can lower the risk of PTSD.
  • Eye movement desensitization and reprocessing (EMDR): Uses directed eye movements along with talk therapy to help the brain heal from past life experiences.
  • Exposure therapy: Exposure therapy helps you face your triggers and learn to cope with them if they come up again in the future.

Medicines for anxiety or depression can help with negative thoughts or feelings in people with PTSD. Research looking at the use of medication with ASD is ongoing.

You might have follow-up appointments to check in with your cancer care team or PCP on how you’re feeling. Your cancer care team might provide you with education and resources for lifestyle habits such as mindfulness, meditation, sleep, and physical activity.

Support or peer groups give you the opportunity to talk with other people who have had similar experiences. Even if you have a strong support system, support groups can help you heal by seeing that you aren’t alone in the way you feel.

Your cancer care team might refer you to additional resources such as patient navigation, social work, counseling, or chaplaincy care to help answer questions and provide support.

Caregivers and post-traumatic stress

Caregivers can, and do, get PTS, ASD, and PTSD as well.

Learning that someone you love has cancer, seeing their pain, and helping them through the cancer experience can be very traumatizing.

One study found that about 1 in 5 families with teenage cancer survivors had a parent with PTSD. Research also shows that parents of children receiving cancer treatment often develop stress-related symptoms. Spouses, children, and other types of caregivers are also at risk.

Questions to ask your cancer care team

Overall, PTS, ASD, and PTSD after cancer are real and treatable. Getting support early can improve emotional health and quality of life. It may help to write down your symptoms before you talk with your cancer care team so you don’t forget. You can also write down any questions you want to ask. Here are some ideas:

  • Based on my symptoms, do you think I could have PTSD?
  • Can my symptoms be treated?
  • What treatments are available?
  • Would medication help with my symptoms?
  • Can I talk with a therapist or specialist about my symptoms?
  • Can you recommend a support group for me?

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Developed by the American Cancer Society medical and editorial content team with medical review and contribution by the American Society of Clinical Oncology (ASCO).

American Society of Clinical Oncology (ASCO). Post-traumatic stress disorder and cancer. Accessed at cancer.net. Content is no longer available.

Chu B, Marwaha K, Savictories T, et al. Physiology, stress reaction. Updated May 7, 2024. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025-Jan. Accessed from https://www.ncbi.nlm.nih.gov/books/NBK541120/ on November 3, 2025.

Finai M, Khan MAB. Acute stress disorder. Updated July 10, 2023. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025-Jan. Accessed from https://www.ncbi.nlm.nih.gov/books/NBK560815/ on November 3, 2025.

Leano A, Korman MB, Goldberg L, et al. Are we missing PTSD in our patients with cancer? Part 1. Can Oncol Nursing J. 2019; 29(2), 141-146.

Mann SK, Marwahah R, Torrico T. Posttraumatic stress disorder. Updated February 25, 2023. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025-Jan. Accessed from https://www.ncbi.nlm.nih.gov/books/NBK560815/ on November 3, 2025.

National Cancer Institute (NCI). Cancer-related post-traumatic stress (PDQ) – health professional version. Updated February 25, 2025. Accessed from https://www.cancer.gov/about-cancer/coping/survivorship/new-normal/ptsd-hp-pdq on November 3, 2025.

National Comprehensive Cancer Network (NCCN). NCCN clinical practice guidelines in oncology (NCCN Guidelines). Distress management. v. 2025. Accessed from https://www.nccn.org on November 3, 2025.

Sareeen J. Post-traumatic stress disorder in adults: Epidemiology, pathophysiology, clinical features, assessment, and diagnosis. UpToDate 2025. Accessed from https://www.uptodate.com/contents/post-traumatic-stress-disorder-in-adults-epidemiology-pathophysiology-clinical-features-assessment-and-diagnosis on November 3, 2025.

Syrjala KL, Chiyon J. Overview of psychosocial issues in the adult cancer survivor. UpToDate. 2025. Accessed at https://www.uptodate.com/contents/overview-of-psychosocial-issues-in-the-adult-cancer-survivor on November 3, 2025.

Last Revised: November 7, 2025

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