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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 - 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) …

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

    Apr 4, 2024 · Obsessive-compulsive disorder (OCD) is a mental illness that causes repeated unwanted thoughts or urges (obsessions). It also can cause you to do certain actions over and …

  4. 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.

  5. What Is are Obsessive-Compulsive and Related Disorders?

    Obsessive-compulsive disorder (OCD) is a disorder in which people have recurring, unwanted thoughts, ideas or sensations (obsessions) that make them feel driven to do something …

  6. Understanding Obsessive-Compulsive Disorder (OCD)

    Sep 22, 2025 · Obsessive-Compulsive Disorder (OCD) is a mental health condition characterized by persistent, unwanted thoughts, urges, or images (obsessions) and repetitive behaviors or …

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

    OCD is a common condition. It causes persistent disturbing thoughts and compulsive rituals that attempt to ease anxiety. The rituals become consuming and interrupt daily life.

  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. Health Encyclopedia - University of Rochester Medical Center

    What causes OCD? Experts aren’t sure of the exact cause of OCD. Genetics, brain abnormalities, and the environment are thought to play a role. It often starts in the teens or early adulthood. …

  10. Obsessive-Compulsive Disorder (OCD): What It Is & Symptoms

    Obsessive-compulsive disorder (OCD) is a mental health condition that causes a pattern of unwanted thoughts and fears (obsessions). These lead to repetitive behaviors (compulsions) …