Cyclothymic Disorder

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Cyclothymic Disorder

Medically reviewed · Ratel Health editorial team · Sunday, 16 August 2026

A mood disorder involving numerous periods of hypomanic and depressive symptoms that do not meet full criteria for hypomanic or major depressive episodes, over at least two years.

Overview

Cyclothymic disorder involves numerous periods of hypomanic symptoms and numerous periods of depressive symptoms that do not meet full criteria for a hypomanic or major depressive episode, present for at least two years in adults.

Signs and Symptoms

Symptoms can include mood swings between mild elevation and mild depression that are chronic and fluctuating, without symptom-free periods longer than two months. Experiencing one or more of these symptoms does not necessarily mean that a person has this condition. Diagnosis requires an appropriate clinical evaluation.

Causes and Risk Factors

The exact cause is not fully understood. Genetic factors related to bipolar disorder are also associated with cyclothymic disorder.

Diagnosis

A diagnosis should be made by a qualified healthcare professional following a comprehensive clinical assessment. Clinicians may use established diagnostic frameworks such as DSM-5-TR and/or ICD-11 as part of a comprehensive assessment.

Treatment

Treatment depends on the individual’s symptoms, clinical history, severity, age, co-occurring conditions, and other relevant factors.

Psychotherapy

Psychoeducation and mood-focused psychotherapy may help manage mood fluctuations.

Medication

Mood stabilizers may be considered, particularly if symptoms are significantly affecting functioning. Medication decisions should be made with a qualified prescribing healthcare professional. Do not start, stop, or change a prescribed medication based solely on information on this page.

Living With Cyclothymic Disorder

Mood tracking and consistent routines can help identify patterns and reduce mood instability.

When to Seek Professional Help

Professional evaluation may be appropriate if symptoms persist, worsen, cause significant distress, or interfere with work, school, or relationships.

Emergency Situations

If a person may be in immediate danger, is experiencing a medical or psychiatric emergency, or may harm themselves or another person, seek immediate assistance through appropriate local emergency services.

Outlook

Cyclothymic disorder is a chronic condition; some individuals go on to develop bipolar I or II disorder over time.

Related Conditions

Bipolar I Disorder

A mood disorder defined by at least one manic episode, often accompanied by episodes of depression.

Bipolar II Disorder

A mood disorder defined by at least one hypomanic episode and at least one major depressive episode, without a full manic episode.

Medical Information Disclaimer

Ratel Health provides general educational information and does not provide medical diagnosis, treatment, or individualized medical advice. Information on this page is not a substitute for evaluation or care from a qualified healthcare professional. Do not use this information to diagnose yourself or another person, or to start, stop, or change treatment or medication without consulting an appropriately qualified healthcare professional.

References

  • American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR).
  • National Institute of Mental Health.
  • World Health Organization. International Classification of Diseases, 11th Revision.