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What are the major categories of mental disorders?

Author

Olivia House

Updated on February 27, 2026

What are the major categories of mental disorders?

While there are over 200 classified forms of mental illness, the five (5) major categories of mental illness are:
  • Anxiety Disorders.
  • Mood Disorders.
  • Schizophrenia/Psychotic Disorders.
  • Dementias.
  • Eating Disorders.

Herein, how many major categories of mental disorders are there?

Mental Illness Defined

There are more than 200 classified forms of mental illness. Some of the more common disorders are: clinical depression, bipolar disorder, dementia, schizophrenia and anxiety disorders. Symptoms may include changes in mood, personality, personal habits and/or social withdrawal.

Also, what are the three most common categories of mental disorders? The most common are anxiety disorders major depression and bipolar disorder.

In this regard, what are the major categories of disorders?

  • Anxiety disorders, including panic disorder, obsessive-compulsive disorder, and phobias.
  • Depression, bipolar disorder, and other mood disorders.
  • Eating disorders.
  • Personality disorders.
  • Post-traumatic stress disorder.
  • Psychotic disorders, including schizophrenia.

What is the most commonly diagnosed category of mental disorders?

Below are the five most common mental health disorders in America and their related symptoms:

  • Anxiety Disorders. The most common category of mental health disorders in America impacts approximately 40 million adults 18 and older.
  • Mood Disorders.
  • Psychotic Disorders.
  • Dementia.
  • Eating disorders.

What are the four categories of mental illness?

anxiety disorders. personality disorders. psychotic disorders (such as schizophrenia) eating disorders.

What are the 7 main mental disorders?

Seven common types of mental disorders include:
  • Depression.
  • Anxiety disorders such as generalized anxiety disorders social anxiety disorders, panic disorders, and phobias.
  • Obsessive-compulsive disorder (OCD)
  • Bipolar disorder.
  • Post-traumatic stress disorder (PTSD)
  • Schizophrenia.

What are the two classifications of mental disorders?

Today, the two most widely established systems of psychiatric classification are the Diagnostic and Statistical Manuel of Mental Disorders (DSM) and the International Classification for Diseases (ICD).

How many disorders are in the DSM-5?

The newest version of the DSM, the DSM-5, was published in May of 2013.

DSM History.

VersionYearNumber of diagnoses
DSM-52013157

What is a major mental illness?

By all accounts, serious mental illnesses include “schizophrenia-spectrum disorders,†“severe bipolar disorder,†and “severe major depression†as specifically and narrowly defined in DSM. People with those disorders comprise the bulk of those with serious mental illness.

What are the stages of mental illness?

There are generally considered to be six stages to recovery from mental illness, as follows:
  • Acceptance. When a person has a mental health problem, the most common barrier to them receiving treatment is denial.
  • Insight.
  • Action.
  • Self-esteem.
  • Healing.
  • Meaning.

What are the 5 major psychiatric disorders?

Five major mental illnesses — autism, attention deficit-hyperactivity disorder, bipolar disorder, major depressive disorder and schizophrenia — appear to share some common genetic risk factors, according to an examination of genetic data from more than 60,000 people worldwide (The Lancet, online Feb. 28).

What is the rarest mental disorder?

Apotemnophilia. Also known as body integrity identity disorder, apotemnophilia is characterized by the “overwhelming desire to amputate healthy parts of [the] body,†according to Medscape.

What is mental disorder How are mental disorders recognized?

They are generally characterized by a combination of abnormal thoughts, perceptions, emotions, behaviour and relationships with others. Mental disorders include: depression, bipolar disorder, schizophrenia and other psychoses, dementia, and developmental disorders including autism.

What is the most common mental disorder in childhood?

ADHD, behavior problems, anxiety, and depression are the most commonly diagnosed mental disorders in children
  • 9.4% of children aged 2-17 years (approximately 6.1 million) have received an ADHD diagnosis.
  • 7.4% of children aged 3-17 years (approximately 4.5 million) have a diagnosed behavior problem.

What is the number 1 mental illness?

Impacting an estimated 300 million people, depression is the most-common mental disorder and generally affects women more often than men.

What does Axis III of the DSM categorize?

Axis III is for reporting current general medical conditions that are potentially relevant to the understanding or management of the individual's mental disorder.

What are three major causes that contribute to mental health disorders?

What causes them?
  • childhood abuse, trauma, or neglect.
  • social isolation or loneliness.
  • experiencing discrimination and stigma.
  • social disadvantage, poverty or debt.
  • bereavement (losing someone close to you)
  • severe or long-term stress.
  • having a long-term physical health condition.
  • unemployment or losing your job.