‘Obsessive compulsive disorder (OCD) is a common mental health condition where a person has obsessive thoughts and compulsive behaviours.
OCD can affect men, women and children. Some people start having symptoms early, often around puberty, but it usually starts during early adulthood.
OCD can be distressing and significantly interfere with your life, but treatment can help you keep it under control.’
– https://www.nhs.uk/mental-health/conditions/obsessive-compulsive-disorder-ocd/overview/
OCD can be very different for different people and it can be hard to give a definition which is both all-encompassing and succinct. If you think you may have OCD, or want to know more about OCD, then use some of the websites on the helpful websites page.