Understanding Rumination: What It Is and How It Relates to Trauma and Post-Traumatic Stress Disorder (PTSD)

Leah Fung – EMDR & CBT Therapist, CBT Supervisor in Guildford, London Bridge and Online

Rumination is a cognitive process where individuals repeatedly think about a problem, their feelings or their distress, without actively seeking solutions. While reflecting on problems can sometimes lead to constructive solutions, rumination tends to focus on the negative aspects of an issue, intensifying feelings of anxiety, sadness, or anger. Rather than finding closure, people who ruminate often get stuck in an endless cycle of thoughts, which can have significant mental health implications.

What Is Rumination?

At its core, rumination involves excessive and repetitive thoughts about distressing situations or emotions. These thoughts may revolve around why something happened, how it affects the person, or what the future holds. The key characteristic of rumination is that it does not lead to a solution but rather magnifies feelings and thoughts. It is prevalent in difficulties such as depression, generalised anxiety disorder, health anxiety, post-traumatic stress disorder, social anxiety, panic disorder and obsessive compulsive disorders.

Intrusive rumination involves spontaneous, involuntary thoughts that repeatedly surface, often without the individual’s control. These thoughts tend to be negative or distressing, focusing on unresolved issues, emotional pain, or perceived failures. Because of their automatic nature, intrusive ruminations can disrupt daily functioning and emotional wellbeing, frequently pulling the person into cycles of stress or anxiety. While these thoughts can initially feel like an attempt to solve a problem, they rarely lead to resolution, instead heightening emotional distress.

Deliberate Rumination on the other hand, is a more intentional and conscious process. It involves reflecting on challenges or distressing events with the goal of understanding or finding meaning. While it may still focus on difficult experiences, deliberate rumination can help individuals work through their emotions and potentially find new perspectives or solutions. Unlike intrusive rumination, which is automatic and unhelpful, deliberate rumination can be constructive when approached mindfully, leading to insights or personal growth as individuals intentionally process their thoughts.

Rumination and Trauma: The Link to PTSD

Rumination becomes particularly problematic in the context of trauma and post-traumatic stress disorder (PTSD). Individuals who have experienced trauma and develop PTSD often experience intrusive memories, flashbacks and heightened emotional states, all of which can feed into cycles of rumination. For individuals with PTSD, rumination often centres around the traumatic event—why it happened, how it could have been prevented, or its continuing impact on their lives.

Several aspects of PTSD make rumination a common issue:

1. Trauma-Related Intrusions: Flashbacks, nightmares, and intrusive thoughts are hallmark symptoms of PTSD. These intrusions can act as triggers for rumination, where the individual becomes mentally stuck on the trauma, replaying it and focusing on what went wrong.
   
2. Negative Cognitions: PTSD is often characterised by pervasive negative beliefs about oneself, others, or the world. These perspectives create conditions for rumination, as individuals may obsess over feelings of guilt, shame or helplessness.
   
3. Hyperarousal: The heightened state of nervous system activation common in PTSD (such as hypervigilance and irritability) can keep individuals on high alert, making it harder to disengage from repetitive, negative thoughts.
   
4. Avoidance Behaviours: People with PTSD often try to avoid situations, thoughts or feelings associated with the trauma. However, paradoxically, avoidance can reinforce rumination, as the unresolved emotions or memories continue to resurface, leading to more ruminating.

The Vicious Cycle of Rumination and PTSD

In PTSD, rumination can create a self-perpetuating cycle of distress. A traumatic memory or emotional trigger can lead to rumination, where the individual revisits the event in their mind, often searching for explanations or solutions. However, because trauma often defies clear understanding or resolution, this process rarely offers relief. Instead, the person may sink deeper into feelings of helplessness or frustration, which, in turn, reinforces the traumatic memory.

This cycle can prolong and intensify symptoms of PTSD, leading to more intrusive thoughts, emotional numbing, and avoidance behaviours. Over time, rumination may worsen mental health, making recovery from trauma more challenging.

Evidence-Based Interventions for Rumination in Trauma and PTSD

Given the detrimental effects of rumination in PTSD, addressing it is crucial in trauma-focused therapy. Several evidence-based therapies and approaches target rumination directly or indirectly, helping individuals reduce the frequency and intensity of negative thoughts.

1. Cognitive Behavioural Therapy (CBT): CBT is one of the most well-established interventions for PTSD and trauma-related rumination. It helps individuals identify and challenge thinking patterns that fuel rumination. Cognitive restructuring, a key technique in CBT, allows individuals to reframe negative thoughts, shifting from “Why did this happen to me?” to more balanced perspectives, like “This event was beyond my control, but I can learn ways to manage its impact.”

CBT can also help individuals engage in problem-solving techniques rather than becoming stuck in passive rumination. By learning to recognise rumination and when this can happen, individuals can interrupt the cycle and focus on more workable and helpful strategies.

2. Acceptance and Commitment Therapy (ACT): ACT takes an approach by encouraging individuals to accept difficult thoughts and feelings without attempting to control or eliminate them. In the context of rumination, ACT promotes awareness and cognitive defusion, where clients learn to see their thoughts as passing mental events rather than objective truths. 

For individuals with PTSD, this can be particularly helpful. Rather than trying to make sense of or escape traumatic memories, ACT encourages clients to be alongside these experiences while focusing on valued actions and goals. This shift from ruminating on “why” to accepting “what is” can reduce the emotional grip of repetitive distressing thoughts.

3. Compassion-Focused Therapy (CFT): Individuals who have experienced trauma may struggle with self-criticism and shame, both of which can fuel rumination. Compassion-focused therapy encourages individuals to develop self-compassion to respond to self-blame and promotes emotional healing.

In CFT, individuals practice generating feelings of warmth and kindness towards themselves, particularly in moments of distress. This compassionate stance can help break the cycle of rumination by developing an attitude of acceptance and understanding, rather than judgment and fixation on the trauma.

4. Polyvagal Theory and Nervous System Regulation: Trauma affects the autonomic nervous system, leaving individuals in states of hyperarousal or shutdown. When the body is in a heightened state of stress, rumination can feel more intense and overwhelming. Polyvagal theory emphasises the importance of nervous system regulation in trauma recovery.

Techniques with breathing, grounding exercises, and body-based movement can help calm the nervous system, facilitating individuals to break out of ruminative cycles. By activating the parasympathetic nervous system (the “rest and digest” mode), individuals are better able to manage their thoughts and emotions, reducing the likelihood of becoming stuck in rumination.

Here’s the link to my blog about grounding techniques: https://yourtherapywithleah.co.uk/8-pitfalls-in-grounding-techniques/

There’s a short video about rhythmic breathing and the benefits for our nervous system on my Instagram: https://www.instagram.com/reel/C_gMac9sCCB/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

Conclusion

Rumination is a pervasive and challenging cognitive process, especially for individuals who have experienced trauma and have symptoms of PTSD. While it may seem like a natural response to distress, rumination often prolongs and intensifies suffering, keeping individuals in cycles of thinking. Fortunately, interventions rooted in CBT, ACT, CFT, and nervous system regulation techniques offer effective ways to interrupt rumination and promote healing.

By addressing the underlying cognitive and emotional patterns that fuel rumination, individuals can learn to approach their experiences with greater acceptance, self-compassion and resilience. In doing so, they can move beyond rumination towards meaningful recovery and post-traumatic growth.