Cyclothymic disorder is a mental disorder. It is a mild form of bipolar disorder (manic depressive illness), in which a person has mood swings over a period of years that go from mild depression to emotional highs.
The causes of cyclothymic disorder are unknown. Major depression, bipolar disorder, and cyclothymia often occur together in families. This suggests that these mood disorders share similar causes.
Cyclothymia usually begins early in life. Men and women are equally affected.
Symptoms may include any of the following:
- Periods (episodes) of extreme happiness and high activity or energy (hypomanic symptoms), or low mood, activity, or energy (depressive symptoms) for at least 2 years (1 or more years in children and adolescents).
- These mood swings are less severe than with bipolar disorder or major depression.
- Ongoing symptoms, with no more than 2 symptom-free months in a row.
Exams and Tests
The diagnosis is usually based on your mood history. Your health care provider may order blood and urine tests to rule out medical causes of mood swings.
Treatments for this disorder include mood-stabilizing medicine, antidepressants, talk therapy, or some combination of these three treatments.
Some of the more commonly used mood stabilizers are lithium and antiseizure medicines.
Compared with bipolar disorder, some people with cyclothymia may not respond as well to medicines.
You can ease the stress of living with cyclothymic disorder by joining a support group whose members share common experiences and problems.
Less than one half of people with cyclothymic disorder go on to develop bipolar disorder. In other people, cyclothymia continues as a chronic condition or disappears with time.
The condition can progress to bipolar disorder.
When to Contact a Medical Professional
Call a mental health professional if you or a loved one has alternating periods of depression and excitement that do not go away and that affect work, school, or social life. Seek help right away if you or a loved one is having thoughts of suicide.
Cyclothymia; Mood disorder - cyclothymia
American Psychiatric Association. Cyclothymic disorder. Diagnostic and Statistical Manual of Mental Disorders. 5th ed. Arlington, VA: American Psychiatric Publishing, 2013:139-141.
Fava M, Østergaard SD, Cassano P. Mood disorders: depressive disorders (major depressive disorder). In: Stern TA, Fava M, Wilens TE, Rosenbaum JF, eds. Massachusetts General Hospital Comprehensive Clinical Psychiatry. 2nd ed. Philadelphia, PA: Elsevier; 2016:chap 29.
Review Date 9/7/2020
Updated by: Fred K. Berger, MD, addiction and forensic psychiatrist, Scripps Memorial Hospital, La Jolla, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.