Obsessive–compulsive disorder (OCD) may be a mental disturbance during which an individual feels the necessity to perform certain routines repeatedly (called "compulsions"), or has certain thoughts repeatedly (called "obsessions"). The person is unable to regulate either the thoughts or activities for quite a brief period of your time . Common compulsions include hand washing, counting of things, and checking to ascertain if a door is locked. Some may have difficulty throwing things out. These activities occur to such a degree that the person's lifestyle is negatively affected, often taking over quite an hour each day . Most adults realize that the behaviors don't add up . The condition is related to tics, mental disorder , and an increased risk of suicide. The cause is unknown. There appear to be some genetic components, with both identical twins more often affected than both non-identical twins. Risk factors include a history of kid abuse or other stress-inducing event. Some cases are documented to occur following infections. The diagnosis is predicated on the symptoms and requires ruling out other drug-related or medical causes. Rating scales like the Yale–Brown Obsessive Compulsive Scale (Y-BOCS) are often wont to assess the severity. Other disorders with similar symptoms include mental disorder , major clinical depression , eating disorders, tic disorders, and obsessive–compulsive mental disorder .