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 repetitively (compulsions). Symptoms and Signs: Common obsessive thoughts in OCD include: Fear of being contaminated by germs or dirt or contaminating othersFear of losing control and harming yourself or othersIntrusive sexually explicit or violent thoughts and imagesExcessive focus on religious or moral ideasFear of losing or not having things you might needOrder and symmetry: the idea that everything must line up “just right”Superstitions; excessive attention to something considered lucky or unlucky. Common compulsive behaviors in OCD include: Excessive double-checking of things, such as locks, appliances, and switchesRepeatedly checking in on loved ones to make sure they’re safeCounting, tapping, repeating certain words, or doing other senseless things to reduce anxietySpending a lot of time washing or cleaningOrdering or arranging things “just so”Praying excessively or engaging in rituals triggered by religious fearAccumulating “junk” such as old newspapers or empty food containers. Treatment: Cognitive Behavioral Therapy. Reference: https://www.helpguide.org/articles/anxiety/obssessive-compulsive-disorder-ocd.htm