OCD or Obsessive-compulsive disorder is a type of condition in which your constant obsessions over certain things lead to irrational and sometimes obsessive behavior. It’s not the same as double-checking to see if you locked your car door or making sure that you packed your child’s lunch for school. These are for simple reassurance.
People with OCD are aware that their obsessive behaviors don’t make sense. However, they can’t stop them from happening.