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Cyclothymia, or cyclothymic disorder, is a mild form of bipolar disorder (manic depression).
A person with cyclothymia will have a history of mood swings that range from mild depression to emotional highs (see How do I know I have cyclothymia?, below).
Most people's symptoms are mild enough that they do not seek mental health treatment, so cyclothymia often goes undiagnosed and untreated.
However, the mood swings can disrupt your personal and work relationships, so if you think you have cyclothymia, it's worth seeing your doctor for treatment.
Cyclothymia can progress into bipolar disorder, and it is often not until this late stage that people seek treatment.
If you have cyclothymia, you'll have periods of low mood followed by periods of euphoria and excitement, when you don't need much sleep (these 'up' periods are called 'hypomania').
The periods of low mood do not last long enough and are not severe enough to merit a diagnosis of clinical depression, but they will probably interfere with your ability to function on a day-to-day basis.
Mood swings will be fairly frequent, as well as persistent – you'll have no more than two symptom-free months in a row.
Your fluctuating moods need to have lasted at least two years (one year in childen and adolescents) for cyclothymia to be diagnosed.
Cyclothymia usually begins early in life and is equally common in both men and women.
Mood stabilisers include:
However, not all people with cyclothymia respond to medication.
Psychotherapy, such as cognitive behavioural therapy (CBT), can be very effective. CBT involves talking to a trained therapist to find ways to help you manage your problems by changing the way you think and behave. It cannot remove your problems, but can help you manage them in a more positive way. The above link will take you to more information on this talking therapy.
Find your nearest depression support service.
It may also help to join a support group, so you can talk to others who share your experiences and problems – see the Useful links, right, for a list of organisations or ask your doctor if there is a local group you can join.
Less than half of people with cyclothymia will eventually develop bipolar disorder, where their elevated or depressed moods become more severe.
Other people will find that their cyclothymia continues and they need to manage this as a lifelong condition, or they find that it disappears with time.
Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.