Mood disorders
Hypomania: signs, how it relates to bipolar disorder and what helps
Hypomania is a period of abnormally high or irritable mood and increased energy, milder than full mania. It is a feature of bipolar disorder, including bipolar II. It can feel productive and enjoyable, but it can become more intense and lead to mania if untreated. This guide explains the signs, how it is assessed and what the NHS offers.
Last checked: 2026-10-10
Key facts
At a glance.
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Milder than mania
The NHS says high moods in bipolar disorder can be severe (called mania) or mild (called hypomania).
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Can escalate
Bipolar UK says hypomania can feel pleasurable and productive, but if left untreated it can become more intense and lead to mania.
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Episodes last days or weeks
The NHS says moods usually last a few days or weeks at a time, with periods of stable mood lasting weeks, months or years.
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Specialist diagnosis
The NHS says if a GP thinks you may have bipolar disorder they will refer you to a psychiatrist, and that it can take time to diagnose because symptoms resemble other conditions.
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Treatable, not curable
The NHS says bipolar disorder cannot be cured, but medicines to stabilise mood and talking therapy such as CBT can help manage it.
What hypomania is
Hypomania is a state of elevated mood and raised energy that is noticeable to others but less extreme than mania. Bipolar UK describes it as the stage between a balanced, happy mood and mania, which doctors describe as a distinct period of abnormally and persistently elevated mood.
It is most often discussed in the context of bipolar disorder, where the NHS says people have extreme changes in mood, sometimes high (mania or hypomania) and sometimes low (depression). People with bipolar disorder usually have stable periods with no symptoms in between. A specialist decides which type of bipolar disorder someone has, and bipolar II is the form characterised by hypomanic rather than full manic episodes alongside depression.
Signs of hypomania
The NHS lists high mood symptoms including feeling very happy and excited, feeling very irritable or aggressive, having a lot of energy and not needing much sleep, racing thoughts or poor concentration, talking fast or a lot, a high sex drive, feeling overly confident, being impulsive or extravagant, and saying or doing things that are out of character.
Bipolar UK describes how hypomania may feel: energetic, as though on an adrenaline rush, happy with a strong sense of wellbeing, confident, creative, irritable and easily distracted. What someone may do includes talking a lot and interrupting, being very friendly to strangers, having out-of-character sexual encounters, sleeping little, becoming very productive and drinking more tea, coffee or alcohol than usual.
| Feature | Hypomania | Mania |
|---|---|---|
| Severity | Milder high mood | Severe high mood |
| Insight | Often feels pleasurable and productive | May have no insight into how unwell they are |
| Risk | Can intensify and lead to mania if untreated | Described as a psychiatric emergency by Bipolar UK |
| Psychosis | Less typical | Hallucinations or delusions can occur |
The other side: low moods
People who have hypomania in bipolar disorder usually also have depression at other times. The NHS lists low mood symptoms including feeling sad or upset, loss of interest, low energy, disturbed sleep, changes in appetite, low confidence, feeling worthless or hopeless, difficulty concentrating, avoiding others and having suicidal thoughts or thoughts of harming yourself.
Because hypomania can feel good, people sometimes seek help only during depression. Bipolar UK notes that noticing and managing hypomania before it gets worse and turns into mania is one of the main challenges for people living with bipolar, so it helps to tell a GP or specialist about any past high periods, however pleasant they felt.
Assessment and treatment
The NHS says to see a GP if you have extreme changes in mood that last a long time or affect everyday life. The GP may refer you to a psychiatrist, who will ask about moods, behaviour, health and family history. It can take time to diagnose because bipolar disorder affects everyone differently and symptoms resemble other conditions.
Treatment is planned with a mental health specialist and may include medicines to stabilise moods and talking therapy such as CBT. Some medicines are taken all the time and others only when symptoms worsen. The NHS says not to stop bipolar medicine unless told to by a doctor, even if you feel better, and that some medicines are not safe in pregnancy, so talk to a doctor if you are pregnant or planning a pregnancy.
The NHS suggests keeping a regular routine, getting plenty of sleep, eating healthily, exercising and managing stress, and avoiding recreational drugs, too much alcohol, lots of caffeine, shift work and flying across time zones where possible.
When to get urgent help
Bipolar UK describes mania as a psychiatric emergency in which treatment and support may be needed urgently to keep someone safe. The NHS says that if doctors are worried you are at risk of self-harm, suicide or harming someone else you may need to stay in hospital or have support from a crisis team at home. In an emergency call 999 or go to A&E, and NHS 111 can direct you to urgent mental health support.
Frequently asked
Questions people ask.
Quick, plain-English answers to the questions we hear most.
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What is hypomania?
The NHS describes it as the mild form of high mood in bipolar disorder, compared with severe high mood called mania.
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How is hypomania different from mania?
Bipolar UK says hypomania is the stage between a balanced happy mood and mania, and that mania is a psychiatric emergency where someone may have no insight into how unwell they are.
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Can hypomania feel good?
Yes. Bipolar UK says it can sometimes feel very pleasurable and productive, but if untreated it can become more intense and lead to mania.
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How long does hypomania last?
The NHS says high and low moods in bipolar disorder usually last a few days or weeks at a time.
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How is it diagnosed?
The NHS says a GP will refer you to a psychiatrist, who asks about moods, behaviour, health and family history. It can take time to diagnose.
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What is the treatment?
Medicines to stabilise mood and talking therapy such as CBT, planned with a mental health specialist, according to the NHS.
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Can I stop my medicine when I feel well?
The NHS says do not stop taking bipolar disorder medicine unless told to by a doctor, even if you feel better.
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What can I do to stay well?
The NHS suggests a regular routine, plenty of sleep, a healthy diet, regular exercise, managing stress and avoiding recreational drugs and too much alcohol or caffeine.
Where this comes from
Sources and checking.
This guide is for information, not medical advice.
Your GP or consultant knows your history and can tell you which parts apply to you. If your symptoms are severe, rapidly worsening, or come with red-flag features, seek urgent medical care. Figures and availability change, so treat them as a guide and confirm with the provider.
Published 2026-10-10, next review 2027-10-10.
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NHS: Bipolar disorder - symptoms, diagnosis and treatment, https://www.nhs.uk/mental-health/conditions/bipolar-disorder/overview/, retrieved October 2026
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Bipolar UK: Signs and symptoms of bipolar (hypomania, mania and depression), https://www.bipolaruk.org/faqs/hypomania, retrieved October 2026
Related guides
Keep reading.
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Bipolar disorder
The wider condition and its treatment.
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Bipolar II disorder
Bipolar disorder with hypomania and depression.
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Cyclothymia
Milder, persistent mood swings.
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Mania in bipolar I disorder
Severe high mood episodes.
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Depression
Low mood episodes and their treatment.
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