There are nearly 300 mental disorders listed in the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders). This is a handbook used by health professionals to help identify and diagnose mental illness.
Some of the main groups of mental disorders are:
- mood disorders (such as depression or bipolar disorder)
- anxiety disorders
- personality disorders
- psychotic disorders (such as schizophrenia)
- eating disorders
- trauma-related disorders (such as post-traumatic stress disorder)
- substance abuse disorders
The diagnosis of mental illness can be controversial. There have been many debates in the medical community about what is and isn’t a mental illness. The definition can be influenced by our society and culture, but most mental illnesses occur across all countries and cultures. This suggests that they are not just constructed by social norms and expectations, but have a biological and psychological basis too.
Not sure what to do next?
If you or someone you know are finding it difficult to manage mental health issues, try healthdirect’s Symptom Checker and get advice on when to seek professional help.
The Symptom Checker guides you to the next appropriate healthcare steps, whether it’s self-care, talking to a health professional, going to a hospital or calling triple zero (000).
Learn more here about the development and quality assurance of healthdirect content.
Last reviewed: November 2020