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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 called …

  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) repeatedly to relieve …

  3. 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.

  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. OCD: Types, Symptoms, Causes, Diagnosis, Treatment, and ...

    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 cause you …

  6. 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 carry out …

  7. Obsessive-compulsive disorder - Office on Women's Health

    Feb 3, 2025 · Obsessive-compulsive disorder (OCD) is a mental health condition that makes a person have thoughts (obsessions) and rituals (compulsions) over and over that they cannot control or stop. …

  8. About International OCD Foundation | All There Is To Know ...

    Obsessions are thoughts, images, or impulses that occur over and over again and feel outside of the person’s control. Individuals with OCD do not want to have these thoughts and find them disturbing. …

  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. But it can …

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

    Dec 6, 2025 · 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) that …