Scrupulosity is a form of obsessive-compulsive disorder (OCD) that affects how a person experiences conscience, guilt, and responsibility. It is often described as an overly sensitive or overactive conscience, where even small, uncertain, or everyday matters can feel morally significant. A person may find themselves repeatedly questioning whether they have done something wrong, wondering if a thought, action, or decision was acceptable, or fearing that they may have made a mistake without realising it. Although these doubts can feel urgent and important, they rarely bring a sense of peace or resolution, and many people with scrupulosity describe a deep difficulty in trusting their own judgment.