Obsessive thoughts are thoughts, images or urges that repeatedly come to a person’s mind against their wishes and create discomfort and anxiety. Almost everyone has unwanted thoughts from time to time; on their own, these thoughts do not mean a mental disorder. Difficulty can arise when the thoughts, and the responses to them, begin to take up a large part of the day and disrupt daily life.
What are obsessive thoughts?
Obsessive thoughts come to mind against a person’s will and can become more persistent the more they are pushed away. The American Psychiatric Association (APA) defines obsessions as “unwanted, intrusive, recurrent and persistent” thoughts, urges or images; NIMH notes that they make most people anxious.
What is the difference between an obsession and a compulsion?
An obsession is a thought, image or urge that comes to mind; a compulsion is a repetitive behavior or mental act performed to reduce that discomfort (NIMH, APA).
| Criterion | Obsession | Compulsion |
|---|---|---|
| Definition | An unwanted, intrusive, recurrent thought, image or urge | A repetitive behavior or mental act that feels as though it has to be done |
| Examples | Contamination, harm, symmetry and order, doubt, disturbing sexual or religious thoughts | Washing, repeated checking, counting, seeking approval or reassurance |
| Function for the person | Usually creates anxiety | Reduces anxiety for a short time |
Compulsions may not be visible: the APA also counts mental acts such as counting, and frequently seeking reassurance, in this category. The Royal College of Psychiatrists in the UK (RCPsych) also names repeatedly asking others to say that everything is all right as a compulsion.
Does everyone have unwanted thoughts?
RCPsych notes that nearly everyone has odd or distressing thoughts or mental pictures at times; NIMH also notes that everyone sometimes rethinks or double-checks things. The Turkish Psychiatric Association likewise states that many people can get caught up in worry, anxiety and obsessions from time to time.
In a study of 777 university students in 13 countries (Radomsky et al., 2014), 93.6% of participants reported at least one unwanted thought in the previous three months, and the most commonly reported thoughts were about doubt. For this reason, the distinction is mostly made by how often the thoughts occur, how much distress they cause and how much they affect daily life.
How can obsessive thoughts persist?
To reduce the discomfort these thoughts create, a person may turn to behaviors such as repeated checking, washing, counting, mentally reviewing, or seeking reassurance from others. RCPsych notes that these behaviors make a person feel less anxious for a short time, and that trying to push a thought out of the mind usually makes it return. In this way, a cycle can form that contributes to the thoughts and anxiety continuing in the long term.
For broader information on how avoidance and reassurance seeking can keep anxiety going, see Anxiety, Stress and Emotion Regulation Difficulties.
When do obsessive thoughts reach the level of OCD?
According to NIMH, in obsessive-compulsive disorder (OCD), symptoms generally take up more than an hour a day and cause significant problems in daily life; the APA also lists being time-consuming, causing significant distress and interfering with daily activities among the criteria. The Turkish Psychiatric Association states that being clean or orderly alone is not considered an illness and that what matters is the impact on daily life.
Symptoms generally begin between late childhood and young adulthood (NIMH); prevalence estimates range from 1% to 3% (the APA reports 1% to 2% in the US; the Turkish Psychiatric Association 2 to 3 in every 100 people). This information does not replace a diagnosis; the evaluation should be made by a professional.
How are obsessive thoughts addressed in psychotherapy?
In psychotherapy, the first step is to understand together the content of the thoughts, their triggers and how the person responds to them. In cognitive behavioral therapy (CBT), the meanings given to thoughts are examined; the aim can be for the person to notice their ways of responding and to build a different relationship with this cycle through work such as gradual exposure and response prevention.
NIMH notes that CBT has been well studied and is considered the “gold standard” of psychotherapy for many people. In the dynamic approach, the context of the thoughts within the person’s emotional world and relationships is addressed. For the approaches, see What Is Cognitive Behavioral Therapy (CBT)?, What Is Psychodynamic Psychotherapy? and How is the suitable way of working assessed? Medication is a matter for a psychiatrist’s evaluation.
How does exposure and response prevention work?
Exposure and response prevention (ERP) is a type of CBT; the APA describes it as the first-line psychotherapy for OCD. RCPsych describes the work as the person gradually facing the feared situation while holding back from their usual compulsive ritual. How the work will be planned is determined together in the first assessment.
When can psychological support be considered?
Psychological support can be considered if the thoughts and the behaviors tied to them take up a large part of the day or affect the person’s work, relationships or daily tasks. NIMH recommends that a person who suspects OCD talk to a health care provider and notes that symptoms can become severe if left untreated. For the general framework, see When can psychological support be considered?; for how a first session may proceed, see What is covered in the first session?
If the person has thoughts of self-harm or faces immediate danger, contacting the 112 Emergency Call Center or going to the nearest emergency department is recommended; whenever possible, it is important that the person is not left alone and tells someone they trust what they are experiencing. This article is not a substitute for emergency support.
Common misconceptions about obsessive thoughts
- “Anyone who is clean or orderly has OCD.” The Turkish Psychiatric Association states that being clean or orderly alone is not considered an illness; the criterion is the impact on daily life.
- “Obsessive thoughts are only about cleaning and checking.” The APA describes a broad range of themes, including contamination, harm, disturbing sexual or religious thoughts and symmetry.
- “Compulsions are only behaviors that can be seen.” The APA also counts mental acts such as counting, and reassurance seeking, among compulsions.
Expert note
Obsessive thoughts can be very distressing in content; in psychotherapy, however, the focus is often less on the content of the thought than on the responses to it and how those responses keep the cycle going. The same thought can lead to very different distress and behaviors in two people; so what is addressed is the meaning the thought holds for the person.
From a perspective that draws on cognitive behavioral and psychodynamic theories, thoughts, emotions, behaviors and relational patterns are evaluated together. The information in this article does not replace an evaluation.
Clinical Psychologist Özgün Emre Yaylacı
Frequently asked questions
Is every intrusive thought or repetitive behavior OCD?
No; NIMH notes that everyone sometimes rethinks or double-checks things. In OCD, symptoms generally take up more than an hour a day, cause marked distress and disrupt daily life (NIMH, APA); this information does not replace a diagnosis.
Does everyone have obsessive thoughts?
Unwanted thoughts can occur in many people from time to time; RCPsych notes that nearly everyone has odd or distressing thoughts. When their frequency, intensity and the distress they cause increase, support from a professional can be sought.
Do unwanted thoughts about harm mean the person wants to or will act on them?
RCPsych notes that people with obsessions do not act on these thoughts even though the thoughts create fear. If the thoughts cause intense distress, talking with a mental health professional may be appropriate; this is general information.
Does trying to suppress thoughts work?
RCPsych notes that trying to push a thought out of the mind usually makes the thoughts return. In psychotherapy, the focus is less on suppressing the thought than on the responses to it.
Can obsessive thoughts be addressed in psychotherapy?
Psychotherapy can be used with people who experience obsessive thoughts. The suitability of a psychotherapeutic approach is determined by the person’s needs, reason for seeking help and clinical evaluation.
Sources
This article is prepared for general information purposes; the following sources were used in preparing it (mostly in English; Turkish-language sources are marked):
- NIMH (US National Institute of Mental Health): Obsessive-Compulsive Disorder: When Unwanted Thoughts or Repetitive Behaviors Take Over
- APA (American Psychiatric Association): What Are Obsessive-Compulsive and Related Disorders?
- RCPsych (Royal College of Psychiatrists, UK): Obsessive-compulsive disorder (OCD)
- Turkish Psychiatric Association: Obsessive-Compulsive Disorder (in Turkish)
- Radomsky et al. (2014): Part 1—You can run but you can’t hide: Intrusive thoughts on six continents. Journal of Obsessive-Compulsive and Related Disorders, 3(3), 269–279
- Republic of Turkey Ministry of Health: New Generation Emergency Call Center, 112 Single Call System (in Turkish)
This article was prepared by Clinical Psychologist Özgün Emre Yaylacı. Last updated: October 23, 2026. The content is for general information only and does not constitute diagnosis, treatment or personal guidance.
