What Are the Symptoms of Bipolar I Disorder ?

People with Bipolar I Disorder may have different types of symptoms with intense emotional states that often occur in episodes.

The symptoms of Bipolar I Disorder are defined primarily by manic or mixed episodes lasting at least a week. Severe manic or depressive symptoms may result in hospitalization. Depressive episodes in Bipolar I Disorder usually last at least 2 weeks.

A person may be having a Bipolar I Disorder episode if he or she experiences manic or depressive symptoms for most of the day, almost every day, or for at least a week or so. Symptoms of Bipolar I Disorder are described below.

Symptoms of a manic episode include:

  • A noticeable period of abnormally elevated, expansive, or irritable mood, lasting at least 1 week (or any duration if hospitalization is necessary)
  • Three (or more) of the following (four if the mood is only irritable):
    • Inflated self-esteem
    • Reduced need for sleep
    • More talkative than usual
    • Racing thoughts
    • Easily distracted
    • Increase in goal-directed activity
    • Extreme involvement in pleasurable, high-risk activities, such as unrestrained spending sprees, sexual indiscretions, or foolish investments

Symptoms of a depressive episode include:

  • Five (or more) of the following present in the same 2-week period; at least one of the symptoms is either depressed mood or loss of interest or pleasure:
    • Depressed mood most of the day, nearly every day
    • Lack of interest in daily activities
    • Weight gain or significant weight loss when not dieting
    • Insomnia or excessive sleeping
    • Noticeable agitation or retardation
    • Loss of energy or fatigue
    • Feelings of worthlessness or guilt
    • Trouble concentrating
    • Persistent thoughts of suicide or death

Symptoms of a mixed episode include:

  • Experiencing symptoms of both a manic episode and a depressive episode nearly every day in a 1-week period
  • Impairment in occupational functioning or in social situations or relationships with others
  • The need to be hospitalized to prevent self-harm or harm to others

In addition to mania and depression, Bipolar I Disorder can cause a range of moods, as shown on the scale.

Chart

Someone having a manic episode may think he or she is famous or rich. A depressive episode may spur feelings of worthlessness.

People with Bipolar I Disorder may also have behavioral problems, or they may act out during social or professional situations. At first, it's not always easy to recognize these issues as mental health symptoms.