When “Just Let It Go” Isn’t Possible
Advice such as “just let it go” is often offered in response to persistent worry or repetitive thoughts. While this guidance may be helpful in situations involving everyday stress, it does not account for the cognitive and behavioural patterns associated with obsessive compulsive disorder (OCD).
For individuals experiencing OCD, thoughts are not easily dismissed, and attempts to ignore them can have the opposite effect. Understanding why “letting go” is not always possible requires examining how intrusive thoughts and compulsive responses interact.
Why Letting Go Works in Some Situations
In typical cognitive processing, unwanted thoughts arise and pass without significant engagement. When attention is not directed toward a thought, it tends to fade naturally as other stimuli take priority.
This process relies on cognitive flexibility — the ability to shift attention and disengage from internal experiences. In many situations, consciously choosing not to focus on a thought allows it to diminish over time.
This is why advice to “let it go” can be effective for transient concerns or minor stressors.
What Changes in OCD
In OCD, the relationship between thoughts and attention functions differently. Intrusive thoughts are experienced as significant, urgent, or potentially harmful, which increases attention and emotional response.
Once attention is focused on a thought, disengaging becomes more difficult. The thought is monitored, analysed, or resisted, which reinforces its presence.
This creates a cycle:
an intrusive thought appears
the thought is interpreted as important or threatening
attention increases
attempts are made to control or resolve the thought
the thought becomes more persistent
In this context, “letting go” is not a simple choice but a process that is disrupted by the underlying pattern.
The Paradox of Thought Suppression
Attempts to suppress unwanted thoughts often lead to increased frequency of those thoughts. This is known as the rebound effect.
When individuals actively try not to think about something, they must monitor their thoughts to ensure the unwanted content does not appear. This monitoring process keeps the thought active in awareness.
In OCD, repeated attempts to suppress or eliminate thoughts strengthen this cycle, making the thoughts feel more intrusive and uncontrollable.
Why Control Strategies Become Habitual
To reduce distress associated with intrusive thoughts, individuals may develop strategies aimed at regaining a sense of control. These strategies can include:
mentally reviewing or analysing the thought
seeking reassurance from others
performing actions to “neutralise” the thought
avoiding situations that trigger the thought
While these behaviours can provide temporary relief, they reinforce the belief that the thought requires action. Over time, this strengthens the association between the thought and the need to respond.
This makes it increasingly difficult to disengage, even when the individual recognises that the response may not be necessary.
Emotional Intensity and Urgency
Intrusive thoughts in OCD are often accompanied by a strong sense of urgency. The thought may feel as though it requires immediate resolution or action.
This urgency is driven by discomfort rather than actual risk. However, because the emotional response is intense, it can be difficult to distinguish between perceived and actual importance.
As a result, the instruction to “let it go” may feel unrealistic or dismissive, as it does not address the intensity of the underlying experience.
The Difference Between Acceptance and Avoidance
Letting go is often misunderstood as ignoring or avoiding a thought. In practice, effective disengagement involves allowing the thought to exist without attempting to control it.
Avoidance strategies, such as distraction or suppression, aim to remove the thought from awareness. Acceptance involves reducing the need to respond to the thought, even if it remains present.
This distinction is important because avoidance maintains the cycle, while acceptance reduces the significance attached to the thought over time.
When Assessment May Be Helpful
Differentiating between everyday difficulty letting go of thoughts and OCD involves examining:
the frequency and persistence of intrusive thoughts
the level of distress associated with them
the presence of compulsive behaviours or mental rituals
the degree to which thoughts interfere with functioning
Assessment provides a structured way to evaluate these factors and determine whether OCD is contributing to the experience.

