Severe signs and symptoms

Seasonal changes in mood- As with seasonal affective disorder (SAD), some people with bipolar disorder have moods that change with the seasons. Some people become manic or hypomanic in the spring or summer and then become depressed in the fall or winter. For other people, this cycle is reversed — they become depressed in the spring or summer and manic or hypomanic in the fall or winter.

Rapid cycling bipolar disorder- Some people with bipolar disorder have rapid mood shifts. This is defined as having four or more mood swings within a single year. However, in some people mood shifts occur much more quickly, sometimes within just hours.

Psychosis- Severe episodes of either mania or depression may result in psychosis, a detachment from reality. Symptoms of psychosis may include false but strongly held beliefs (delusions) and hearing or seeing things that aren't there (hallucinations).

Instead of clear-cut depression and mania or hypomania, the most prominent signs of bipolar disorder in children and adolescents can include explosive temper, rapid mood shifts, reckless behavior and aggression. In some cases, these shifts occur within hours or less — for example, a child may have intense periods of giddiness and silliness, long bouts of crying and outbursts of explosive anger all in one day.

Bipolar in children and adolescents