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  1. Obsessive-compulsive disorder (OCD) - Symptoms and causes

    Dec 21, 2023 · Obsessive-compulsive disorder (OCD) features a pattern of unwanted thoughts and fears known as obsessions. These obsessions lead you to do repetitive behaviors, also …

  2. Obsessive-Compulsive Disorder (OCD) - National Institute of …

    Obsessive-compulsive disorder (OCD) is a disorder marked by uncontrollable and recurring thoughts (obsessions), repetitive and excessive behaviors (compulsions), or both.

  3. Obsessive–compulsive disorder - Wikipedia

    Obsessive–compulsive disorder (OCD) is a mental disorder in which an individual has intrusive thoughts (an obsession) and feels the need to perform certain behaviors (compulsions) …

  4. Obsessive-Compulsive Disorder (OCD) - Johns Hopkins Medicine

    OCD is a common anxiety disorder. It causes unreasonable thoughts, fears, or worries. A person with OCD tries to manage these thoughts through rituals.

  5. Obsessive-compulsive Disorder | National Alliance on Mental …

    3 days ago · Obsessive-compulsive disorder (OCD) is characterized by repetitive, unwanted, intrusive thoughts (obsessions) and irrational, excessive urges to do certain actions …

  6. Obsessive-Compulsive Disorder (OCD): Definition, Symptoms, …

    Dec 15, 2025 · Obsessive-compulsive disorder (OCD) is a mental disorder in which people experience disruptive obsessions and compulsions. Learn more about OCD.

  7. Obsessive-Compulsive Disorder - MedlinePlus

    Oct 17, 2023 · What is obsessive-compulsive disorder (OCD)? Obsessive-compulsive disorder (OCD) is a mental disorder in which you have thoughts (obsessions) and rituals (compulsions) …

  8. Obsessive-Compulsive Disorder (OCD) - Harvard Health

    Jul 7, 2025 · What is obsessive-compulsive disorder? In obsessive-compulsive disorder (OCD), a person is troubled by intrusive, distressing thoughts (obsessions) and feels the pressure to …

  9. Obsessive-Compulsive Disorder (OCD): Signs and Treatment

    Apr 4, 2024 · What Is Obsessive-Compulsive Disorder? Obsessive-compulsive disorder (OCD) is a mental illness that causes repeated unwanted thoughts or urges (obsessions). It also can …

  10. Health Encyclopedia - University of Rochester Medical Center

    Frequent disturbing thoughts or images are called obsessions. They are irrational and can cause great anxiety. Reasoning doesn’t help control the thoughts. Rituals or compulsions are actions …