Is it possible to have bipolar disorder without the depression?

Yes. The essential feature in a diagnosis of bipolar disorder is a current or past manic or hypomanic episode. There are several variants of bipolar disorder. Some people only have manic episodes while others have mostly depressive episodes with only having had 1 manic or hypomanic episode at a single point in time.
No. By definition, bipolar disorder involves both depression and mania. Mania alone is referred to as unipolar mania.

Related Questions

How can bipolar disorder differ from depression?

Uni- vs bi-polar sxs. A person with unipolar depression may be very low or irritable with impact on varying areas of life function. A person with bipolar depression has both periods of lows but also has periods of markedly increased energy level, irritable or euphoric mood, rapid thoughts, impulsivity & hyperproductivity.

How can depression and bipolar disorder be similar?

Bipolar. Bipolar experience extremes of mood changes from mania to depression. If you have episode of depression & prior similar episodes with no mania/hypomania, it is depression. If current episode is depressed & there is history of manic/hypomanic episodes, the diagnosis is more likely bipolar do, depressed type.

How do I know if I have depression bipolar disorder?

Unipolar depression. Presents only with depressive symptoms: low mood, v energy level, v concentration, amotivation, ^ or v sleeping, ^ or v in appetite, poor self esteem, feelings of hopelessness or helplessness, lack of joy, irritability, impaired functioning, guilt ; suicidal thoughts or psychosis. With bipolar depression the individual also has periods w marked ^ in energy ; mood. Ania or hypomania: 1 may show >.
Bipolar. Bipolar I and bipolar II, In the first, manic phases are more severe, and in the second, depressive phases are more severe. There is also cyclothymia which is a low grade version of bipolar disorder in general, where mood swings are not as severe in either direction, manic or depressive. Get a full psychiatric evaluation for what bothers you and ask for a referral to a reputable psychotherapist.

I have depression or bipolar disorder, how can I tell?

You might... If you have severe depression ; bipolar runs in your family, you might have it. Are you on medication? Talk to your therapist or prescribing physician ; they can help you decide whether you are suffering from depression or bipolar. Have you ever had a "manic" episode?

How can you tell if you have bipolar disorder or just depression?

Consult. This can be one of the hardest things to figure out for a psychiatrist, so you should go see a psychiatrist as part of figuring this out. You may well want to do some mood charting first (tracking mood over time) and you might want to check out the book "why am I still depressed? ".
Bipolar. Bipolar experience extremes of mood changes from mania to depression. If you have episode of depression & prior similar episodes with no mania/hypomania, it is depression. If current episode is depressed & there is history of manic/hypomanic episodes, the diagnosis is more likely bipolar do, depressed type.
Not always easy. If the patient hasn't experienced a clear manic episode it may be difficult--sometimes pts r thought to have a depression & become manic when put on an antidepressant---some pts don't respond to antidepressants but do well on mood stabilizers--it isn't always clear initally.

Is there a surgery to cure depression or bipolar disorder?

No. These conditions are thought to be due to an imbalance of certain chemicals in the brain. There is no surgical treatment at this time.
Yes. There is deep brain stimulation which is experimental for severe resistant cases.

How is manic depression different from bipolar disorder?

Same thing. Manic depression is the old term 4 the same illness.
NOT REALLY. The terms are interchangable. Bipolar I and bipolar II, In the first, manic phases are more severe, and in the second, depressive phases are more severe. There is also cyclothymia which is a low grade version of bipolar disorder in general, where mood swings are not as severe in either direction, manic or depressive. No one knows how it develops, other than a mystery of genetic confluence.

What are the differences between bipolar disorder and manic depression?

The decade's DSM. About a century ago it all began and much is the same, but for boundary lines. Few use the M-D term now but otherwise the differences are hard to lock in. Some BPs only show depression, but varying sorts of elevated periods can be there and they can be just very active or irritably violent. Extremely intense episodes come close to, or are, a psychosis. Good treatment (Therapy+) really helps.
Interchangable. The terms are interchangeable, with bipolar disorder being the more modern, clinical term. Bipolar disorder refers to extreme swings of mood from depression to mania and back again.