The scientific study of psychological disorders is still an ongoing activity and as a result, the mental disorders list is still not complete. Additions to this list happen very regularly and even the existing list of ailments constantly get realigned, redefined, refreshed and also removed sometimes. These frequent and constant changes to the mental disorders list is because the scientific study of these ailments is relatively new and the list of psychological disorders and ailments re very vast. Every research in this realm reveals a new dimension of the ailments, to the researchers. Also, many previously unreported disorders come to the attention of the researchers, who have to broaden their scope of study as a result. It might be many more years before the study of psychological disorders is complete and a comprehensive mental disorders list is available. Currently, the mental disorders list is classified under three major aspects of the ailments – Causes, effects and symptoms.

These classifications contain numerous sub categorizations and sub divisions. The primary classification is with regards to the causes of the psychological disorders. Amongst the sub categories, the most important ones are hereditary, biological, stress induced, social, familial and physical causes. Mental disorders list under this classification contain disorders that are directly impacted by these causes. Socio – familial and stress related disorders are the most common ailments faced by people, especially by children. This is followed by the biological and hereditary causes. Existing ailment of the body can affect the mental wellbeing and balance of the people, if they are of prolonged nature. 

The symptom and effects based mental disorders list will have sub categorizations that are symptomatic displays of the psychological disorders. All types of phobias, anxiety disorders, behavioral disorders, autism, mental retardation, etc. are some examples of disorders that fall under these classifications. The compiled mental disorders list can contain well over 200 known and studied psychological disorders. This list is only set to grow, as more and more phobias and disorders are being discovered or reported very frequently. The treatment and medicational remedies can vary according to the type of psychological disorder and also according to the condition of the people who are afflicted with the disorders. Some of the ailments are simple and common enough to be rectified immediately but many others need expert consultation and comprehensive treatment procedure. If people want to find out if they are afflicted by any of the ailments present in the mental disorders list, they must seek professional advice and not jump into conclusions on their own.