Some may involve a single episode, while others can relapse or persist.

The DSM-5 categorizes major types of mental disorders into categories by Diagnostic Criteria and assigns codes to each diagnosis.

The article will also discuss how mental illness is diagnosed, as well as some common treatment options.

Anxiety symptoms can worsen over time, interfering with people’s ability to function in their daily lives.

People with anxiety may also attempt to avoid situations or triggers that worsen symptoms.

Anxiety disorders are a group of related conditions, each having unique symptoms.

People with this disorder experience extremely high and low moods, known as mania and depression.

They may have distinct manic or depressed states, or they may have long periods without symptoms.

A person with bipolar disorder can also experience mixed manic and depressive symptoms.

Bipolar disorder affects 2.8% of the U.S. population, and 83% of cases are classified as severe.

Some will only experience one depressive episode in their lifetime, but for most, depressive disorder recurs.

Without treatment, episodes may last a few months to several years.

Suicidal thinking or behavior can also occur.

Symptoms of dissociative disorders can potentially affect every area of mental functioning.

Dissociative disorders involve disruptions in memory, identity, emotion, perception, behavior, and sense of self.

Dissociative disorders are frequently associated with previous experiences of trauma.

It is believed that dissociation helps a person tolerate what might otherwise be too difficult to bear.

Over time, these behaviors can significantly impair physical health and psychosocial functioning.

It often begins in childhood, but some people may not experience it until after puberty or much later.

Transgender people are individuals whose sex assigned at birth does not match their gender identity.

Neurocognitive Disorders

Neurocognitive disorders lead to a decline in cognitive function from a previously obtained level.

This can produce impairments in personal, social, and academic functioning.

These repetitive behaviors can significantly interfere with a persons daily activities and social interactions.

Not performing the behaviors commonly causes great distress.

People with OCD have difficulty disengaging from the obsessive thoughts or stopping the compulsive actions.

This disorder is estimated to affect 2% to 3% of U.S. adults.

The pattern of experience and behavior begins by the time of late adolescence or early adulthood.

There are 10 types of personality disorders.

Schizophrenia affects less than 1% of the U.S. population.

They occur when a person continues the use of alcohol or another drug or substance despite significant substance-related problems.

There are many treatment options for mental illnesses.

A prompt diagnosis can lead to significant improvements in your quality of life.

Doctors and other mental health professionals diagnose mental illness by using the criteria outlined in the DSM-5.

Many conditions require all criteria to be met before a diagnosis can be made.

It is common for people to have more than one mental illness at a time.

psychotherapy combined with medication).

Disorders that resist initial treatment may require further interventions.

Common types of psychotherapy include:

Medication

Medications may be used to reduce symptoms and restore functioning.

They are often used in conjunction with psychotherapy.

For transcranial magnetic stimulation, magnets are used to stimulate areas of the brain associated with mood regulation.

Ketamine infusion or nasal spray therapy offers another option for people with treatment-resistant major depression.

It may work rapidly and help reduce suicide ideation.

Lifestyle

Lifestyle changes help promote overall well-being.

If you or a loved one are in immediate danger, call911.

Criteria from the DSM-5 are typically used to diagnose mental illnesses.

Treatments are available to relieve symptoms and manage emotions, thinking, and behavior.

You may also benefit from lifestyle adjustments.

National Institute of Mental Health.Mental illness.

National Alliance on Mental Illness.Anxiety disorders.

American Psychiatric Association.What are anxiety disorders?

National Institute of Mental Health.Anxiety disorders.

National Alliance on Mental Illness.Bipolar disorder.

National Institute of Mental Health.Bipolar disorder.

National Institute of Mental Health.Depression.

National Institute of Mental Health.Perinatal depression.

National Institute of Mental Health.Seasonal affective disorder.

Office on Women’s Health.Premenstrual dysphoric disorder (PMDD).

American Psychiatric Association.What are dissociative disorders?

Clouden TA.Dissociative amnesia and dissociative fugue in a 20-year-old woman with schizoaffective disorder and post-traumatic stress disorder.Cureus.

2020;12(5):e8289.

doi:10.7759/cureus.8289

Murphy RJ.Depersonalization/derealization disorder and neural correlates of trauma-related pathology: a critical review.Innov Clin Neurosci.

2023;20(1-3):53-59.

American Psychiatric Association.What are eating disorders?

National Institute of Mental Health.Eating disorders.

StatPearls.Major neurocognitive disorder (dementia).

2015;23(5):368-376. doi:10.1097/HRP.0000000000000084

American Psychiatric Association.What is obsessive-compulsive disorder?

National Health Service.Hoarding disorder.

National Health Service.Body dysmorphic disorder (BDD).

American Psychiatric Association.What is schizophrenia?

American Psychiatric Association.What are sleep disorders?

National Institute of Mental Health.Post-traumatic stress disorder.

Department of Veterans Affairs.Acute stress disorder (ASD).

2019;47(10):1735-1745. doi:10.1007/s10802-019-00547-0

National Alliance on Mental Illness.Mental health by the numbers.

National Institute on Drug Abuse.Comorbidity: substance use disorders and other mental illnesses.

National Institute of Mental Health.Borderline personality disorder.

2019 Apr 2;8:212573. doi:10.7573/dic.212573

National Eating Disorder Association.Co-occurring conditions & special issues.

National Institute on Mental Health.Mental health medications.

Harvard Health Publishing.Ketamine for major depression: new tool, new questions.