Health conditions

Mental illness

A mental illness is a health problem that significantly affects how a person thinks, behaves and interacts with other people. It is diagnosed according to standardised criteria.

1 in 5 Australians will suffer from a mental illness at some point in their lives.

There are a range of services available to provide support and immediate response to people in crisis or in need of urgent medical care in an emergency.

View the A–Z list of health conditions.