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What Are the Symptoms of Bipolar Disorder?
Signs and symptoms of mania (or a manic episode) include:
A manic episode is diagnosed if elevated mood occurs with three or more of the other symptoms most of the day, nearly every day, for 1 week or longer. If the mood is irritable, four additional symptoms must be present.
Signs and symptoms of depression (or a depressive episode) include:
A depressive episode is diagnosed if five or more of these symptoms last most of the day, nearly every day, for a period of 2 weeks or longer.
A mild to moderate level of mania is called hypomania. Hypomania may feel good to the person who experiences it and may even be associated with good functioning and enhanced productivity. Thus even when family and friends learn to recognize the mood swings as possible bipolar disorder, the person may deny that anything is wrong. Without proper treatment, however, hypomania can become severe mania in some people or can switch into depression.
Sometimes, severe episodes of mania or depression include symptoms of psychosis (or psychotic symptoms). Common psychotic symptoms are hallucinations (hearing, seeing, or otherwise sensing the presence of things not actually there) and delusions (false, strongly held beliefs not influenced by logical reasoning or explained by a person's usual cultural concepts). Psychotic symptoms in bipolar disorder tend to reflect the extreme mood state at the time. For example, delusions of grandiosity, such as believing one is the President or has special powers or wealth, may occur during mania; delusions of guilt or worthlessness, such as believing that one is ruined and penniless or has committed some terrible crime, may appear during depression. People with bipolar disorder who have these symptoms are sometimes incorrectly diagnosed as having schizophrenia, another severe mental illness. It may be helpful to think of the various mood states in bipolar disorder as a spectrum or continuous range. At one end is severe depression, above which is moderate depression and then mild low mood, which many people call "the blues" when it is short-lived but is termed "dysthymia" when it is chronic. Then there is normal or balanced mood, above which comes hypomania (mild to moderate mania), and then severe mania.
In some people, however, symptoms of mania and depression may occur together in what is called a mixed bipolar state. Symptoms of a mixed state often include agitation, trouble sleeping, significant change in appetite, psychosis, and suicidal thinking. A person may have a very sad, hopeless mood while at the same time feeling extremely energized.
Bipolar disorder may appear to be a problem other than mental illness—for instance, alcohol or drug abuse, poor school or work performance, or strained interpersonal relationships. Such problems in fact may be signs of an underlying mood disorder.
Diagnosis of Bipolar Disorder
Descriptions offered by people with bipolar disorder give valuable insights into the various mood states associated with the illness:
Depression: I doubt completely my ability to do anything well. It seems as though my mind has slowed down and burned out to the point of being virtually useless…. [I am] haunt[ed]… with the total, the desperate hopelessness of it all…. Others say, "It's only temporary, it will pass, you will get over it," but of course they haven't any idea of how I feel, although they are certain they do. If I can't feel, move, think or care, then what on earth is the point?
Hypomania: At first when I'm high, it's tremendous… ideas are fast… like shooting stars you follow until brighter ones appear…. All shyness disappears, the right words and gestures are suddenly there… uninteresting people, things become intensely interesting. Sensuality is pervasive, the desire to seduce and be seduced is irresistible. Your marrow is infused with unbelievable feelings of ease, power, well-being, omnipotence, euphoria… you can do anything… but, somewhere this changes.
Mania: The fast ideas become too fast and there are far too many… overwhelming confusion replaces clarity… you stop keeping up with it—memory goes. Infectious humor ceases to amuse. Your friends become frightened…. everything is now against the grain… you are irritable, angry, frightened, uncontrollable, and trapped.
This publication, written by Melissa Spearing of NIMH, is a revision and update of an earlier version by Mary Lynn Hendrix. Scientific information and review were provided by NIMH Director Steven E. Hyman, M.D., and NIMH staff members Matthew V. Rudorfer, M.D., and Jane L. Pearson, Ph.D. Editorial assistance was provided by Clarissa K. Wittenberg, Margaret Strock, and Lisa D. Alberts of NIMH. NIH Publication No. 3679
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