Compulsions and obsessive-compulsive disorders can manifest themselves in the form of compulsive thoughts or acts and occur very frequently in childhood and adolescence. Those affected suffer from recurring, intrusive thoughts and impulses, e.g. the fear of having done something wrong or of being contaminated. Sometimes compulsive actions are also carried out, which often refer to control, order and cleanliness, e.g. excessive hand washing. Obsessive-compulsive disorder can trigger feelings of shame and guilt and can place a heavy burden on children and adolescents and restrict them in their everyday lives.